(UNIFICADAS) A opinião pública internacional, constantemente, se vê abalada pelas notícias sobre o fantasma da fome que ameaça a milhões de africanos. A interrupção da produção por guerras civis e golpes de estado é uma das causas. Mas, também, há o risco de que a fome se alastre, em virtude do avanço de processos de desertificação, o que se verifica, já em estado avançado, na área imediatamente ao sul do Saara, conhecida como:


Sahel.


Magreb.


Atlas.


Benguela.

Answers

Answer 1

Answer:

Sahel.

Explanation:

El Sahel es una región de África que se encuentra entre una región tropical húmeda en el sur y el desierto del Sahara en el norte. Limita al oeste con el Océano Atlántico y al este con el Mar Rojo.

Los siguientes países, enumerados de oeste a este, forman parte del Sahel: Senegal, Gambia, Mauritania, Malí, Burkina Faso, Níger, Nigeria, Chad, Sudán, Etiopía, Eritrea, Djibouti, Somalilandia y Somalia. También se pueden incluir las zonas del norte de Costa de Marfil, Ghana, Togo y Benin. Muchos países del Sahel se encuentran entre los más pobres del mundo.

El Sahel es una zona de transición bastante seca y donde la desertificación del paisaje original de la sabana es el principal problema ambiental. La precipitación media es de unos 150 a 500 mm por año. La mayor parte de la lluvia cae en la temporada de lluvias. Debido a que la creciente población usa mucha leña (para el fuego) y los rebaños de ganado se comen los brotes jóvenes de la vegetación, mucha vegetación desaparece y el desierto avanza. Encontrar agua potable adecuada es un problema importante para muchas personas.

Además, es probable que la región del Sahel sufra un oscurecimiento global, que es el resultado de la contaminación de la atmósfera por las emisiones de desechos. [¿Fuente?] Las gotas de nubes flotantes crecen sobre partículas suspendidas a través de la condensación hasta que se vuelven tan pesadas que caen como lluvia. La contaminación hace que floten más partículas (aerosoles) en la atmósfera, por lo que se pueden formar más gotas, que permanecen más pequeñas y ligeras. Más gotas flotantes significan que más luz del sol se refleja en el espacio. Sin embargo, hay personas que afirman [¿fuente?] Que todo esto es un proceso natural, y también ha ocurrido en otros lugares de la tierra en el pasado. Dado que el Sahel está cerca del ecuador, pueden producirse temperaturas extremadamente altas. En el momento de redactar este artículo (2007), el conocimiento científico sobre el clima es insuficiente para sacar conclusiones sólidas.


Related Questions

Which statement best describes the characteristics of areas near the equator?
A
Areas near the equator get less direct sunlight so the temperatures are lower.

B
Areas near the equator get more direct sunlight so the temperatures are higher.

C
Areas near the equator have more yearly rainfall so the temperatures are lower.

D
Areas near the equator have less yearly rainfall so the temperatures are higher.

Answers

Answer:

B . Areas near the equator get more direct sunlight so the temperatures are higher.

Explanation:

At equator, the sun is always over head and hits the surface directly. The surface is no at an angle to the sun.

The insolation here is very great and they received more direct sunlight.

Due to the high insolation, the temperature is higher than most part of the earth. Rainfall levels are also high as rain cloud easily forms here. In most equatorial region, both temperature and rainfall is high all year round.

Land development and dumping of waste are affecting which natural resource of the Pacific Coast region? (1 point) wetlands desert grapes coal

Answers

Answer:

Wetlands

Explanation:

Wetland loss due to land development and dumping of waste is a major detriment to wetlands.

A wetland is an area that is seasonally flooded with water from time to time.

Wetlands are distinct and very unique landforms with special hydrologic signatures that allows for certain organisms to thrive.

The loss of wetland is becoming a serious problem. It has been suggested that about 50% of the world's wetlands have been lost in the past 100yrs.

What is a rift valley?

Where continental plates collide and form rifts of folded mountains in the crust
Where the ocean floor appears to be splitting and magma is rising from the mantle
Where a continental plate collides with an ocean plate to form a subduction zone
Where two ocean plates collide forming a subduction zone

Answers

Answer:

A rift valley is where the ocean floor appears to be splitting and magma is rising from the mantle

Explanation:

Answer:

B.) Where the ocean floor appears to be splitting and magma is rising from the mantle

Why do most mudflows occur in dry mountainous regions after a heavy rain fall?

Answers

Answer:

The reason for that is because in dry regions there are a lot of rocks and rocks are made minerals and dried up mud. So when they have heavy rainfalls the rain wets the rocks and it loses and eventually because mud and thats how mudflows happen.

Explanation:

hope this helps. :)

2. What is the science and art of correct thinking?
A Ethics
C. Metaphysics
B. Aesthetics
D. Logic
11​

Answers

Answer:

logic

Explanation:

logic is the art of correct thinking and has been called that for a long time

Answer:

logic

Explanation:

this means that the science the primary purpose of which is the discovery order as it exists in the objective world

The majority of the debris found in the garbage patch is _______.
a.
large plastic bottles
b.
sewage
c.
trash from landfills
d.
small pieces of plastic

Answers

Answer:

D is the right answer. I think but I am not sure

The majority of the debris found in the garbage patch is small pieces of plastic. Hence, option D is correct.

What is garbage patch?

Large sections of the water called garbage patches are where marine waste, which also includes trash, fishing gear, and other material, accumulates. Gyres, which are revolving ocean currents, are what cause them to form. They can be compared to large whirlpools that draw things in.

A huge system of spinning ocean currents is what the National Oceanic and Atmospheric Administration refers to as a gyre. However, it is increasingly used to describe the garbage patch as an oceanic vortex of small-particle debris and plastic waste.

The largest of the five offshore plastic accumulation zones in the world's oceans is known as the Great Pacific Garbage Patch. It is about midway between California and Hawaii.

Thus, option D is correct.

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Why are the “Banks” in Atlantic Canada such productive areas for fish?

Answers

Because there is fluid / water

Which of the following is true for a tropical rainforest, but not for a desert?

Answers

??? where is the rest of the info

Deserts are extremely dry land areas that can be hot or cold and receive very little rain. Rainforests, on the other hand, receive massive amounts of rain. Both support a wide range of plants.

Why do deserts have no plants?

In a desert, evaporation often exceeds annual rainfall. Water is scarce in all deserts, making it difficult for plants and other organisms to survive. Deserts can be found on all continents and cover approximately one-fifth of the Earth's land surface.

Plants in the rainforest use broad leaves and tall stems to compete for sunlight, whereas desert plants progressed to store water. Most rainforests receive more than 100 inches of rain per year, whereas deserts receive only 10 inches in a good year, with droughts occurring frequently.

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Oceans are a closed system.
True
False​

Answers

This question is false

Oceans are a closed system, is the false statement. An example of a closed system on earth is a cup of tea with a lid on it. The environment, not the tea, is the only source of energy exchange.

What is meant by closed system?

A closed system is a type of thermodynamic system in which mass is conserved within the system's boundaries, but energy can easily enter or leave the system.

In chemistry, a closed system is one that permits energy transfer but prevents reactants or products from entering or leaving. A thermos or cooler is approximately an isolated system.

Additional examples include open frying pots and basic water bottles. Energy can enter and exit from a closed system, but matter cannot. A stove top covered pot is around this size.

Thus, it is a false statement.

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Choosing roles for a formal discussion can include picking a member to be a moderator. agreeing to always remain respectful. deciding on the purpose of the discussion. deciding to raise hands before speaking.​

Answers

Answer:

A picking a member to be a moderator

Explanation:

That is the only one that make since and I took the quiz

Answer:

A.picking a member to be a moderator

Explanation:

The number of salmon has ___________ in part because of human activities, such as building of dams and redirecting the flow of rivers for crops.

Answers

Answer:

Decreased

Explanation:

The number of salmon has decreased in part because of human activities, such as building of dams and redirecting the flow of rivers for crops.

Choose all of the characteristics that caused scientists to reclassify Pluto as a dwarf Planet
Icy body, similar to the Kuiper Belt objects
Rocky or gaseous composition
Extreme oval shaped orbit
Near circular shaped orbit
o It has not cleared its orbital path of other objects

Answers

Answer:

The answer is 2

The object would have to be irregularly shaped, orbit the Sun, and be traveling in a path free from other objects.

Explanation:

In the given statement two characteristics are correct that caused scientists to reclassify Pluto as a dwarf Planet. Extreme oval shaped orbit and t has not cleared its orbital path of other objects .

What is dwarf planet  ?

According to the IAU, a celestial body in direct orbit of the Sun that is sufficiently large that gravitational forces rather than rotational forces govern its shape is referred to as a "dwarf planet. mechanical forces (and so has the shape of an ellipsoid), but has not yet rid the area around it of other items.

Pluto was reduced to a dwarf planet by the International Astronomical Union (IAU) because it did not meet the three requirements for a full-sized planet. In essence, Pluto satisfies all the requirements but for the one that it "has not cleansed its neighboring neighborhood of other objects.

There are mountains, valleys, plains, and craters on Pluto's surface. Pluto's temperature can reach -375 to -400 degrees Fahrenheit (-226 to -240 degrees Celsius). The tallest mountains on Pluto range in height from 6,500 to 9,800 feet (2 to 3 kilometers).

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What happens at a convergent boundary?

A. Magnetism occurs as lithospheric plates are attracted toward each other by gravity.

B. Mountains form as lithospheric plates move side by side past each other.

C. Earthquakes occur as lithospheric plates move away from each other.

D. Collisions occur as lithospheric plates move toward each other.

Answers

Answer:

At convergent boundaries, collisions occur as lithospheric plates move toward each other.

Explanation:

A is not correct because the movement of the tectonic plates is not driven by magnetism.

B is not correct because at this type of boundary the tectonic plates move toward each other, not slide past each other.

C is not correct because the plates move toward each other at this type of boundary, not move away from each other.

D is correct because at this type of boundary the plates move toward each other, and as they do collisions occur, resulting in the formation of mountains and subduction zones.

how do I figure this out ​

Answers

the answer is 4, y2-y1 / x2-x1

Answer:

b.4

Explanation:

so like you gotta do y2-y1 over x2-x1

Which statement best completes the diagram? Effect Hinduism becomes India'smain religion​

Answers

Answer:

making india focus and change its ways to hinduism

Explanation:

Answer:

making india focus and change its ways to hinduism

Explanation:

HOPE IT HELPSSS!! :D

If the endpoints of AB
A(-4,5)
are
and B(2,-5)
what is the length (distance) of AB ?

Answers

Answer:

11.66units

Explanation:

Given parameters:

    Coordinates of A = (-4,5)

    Coordinates of B = (2,-5)

Unknown:

Length of AB = ?

Solution:

To find the distance between two points, use the expression below;

  D = [tex]\sqrt{(x_{2} - x_{1})^{2} + (y_{2} - y_{1} )^{2} }[/tex]

  x₁ = -4

  x₂ = 2

  y₁   = 5

 y₂  = -5

Input the parameters and solve;

    D = [tex]\sqrt{( 2- (-4))^{2} + ( -5 - 5 )^{2} }[/tex]

    D = √6² + (-10)²  = 11.66

which of the following is the result of the collision of two oceanic plates?
A. trench
B. volcano
C. rift valley
D. fault line​

Answers

According to what I know It Forms a Subduction Zone, therefore I’d say Volcano is your answer.

Describe the ecological conditions of the alpine tundra.

Answers

Answer:

The Alpine Tundra Ecosystem starts between elevations of 11,000 to 11,500 feet, depending on exposure. This is truly a land of extremes. Strong, frequent winds and cold temperatures help limit what plants can grow there. . Grasses and sedges are common where tundra soil is well-developed

Rate me please

The alpine tundra is a high-altitude biome that is characterized by harsh environmental conditions, including cold temperatures, strong winds, and low oxygen levels.

Where does high-altitude biome found ?

This biome is found above the tree line, typically above 10,000 feet in elevation, and is characterized by rocky terrain, thin soils, and a short growing season.

Vegetation in the alpine tundra is limited to low-growing, hardy plants such as grasses, sedges, and dwarf shrubs, and the area is home to a variety of specialized animals adapted to the extreme conditions, such as pikas, marmots, and mountain goats. The alpine tundra is also an important ecosystem for regulating the water cycle, as snow and ice melt in the summer and feed into streams and rivers downstream.

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Urban heat islands can cause an increase in __________ pollution, which is very harmful to people’s health.
A.
heat
B.
ozone
C.
runoff
D.
water

Please select the best answer from the choices provided
A
B
C
D

Answers

Answer:

b

Explanation:

edge 2020

Answer:

b

Explanation:

HELPPP MEEE ASAPP PLEASE!!!!
Which of these is NOT one of Alfred Wegener's evidences to support
Continental Drift?
Distribution of rock formations
Shapes of existing continents
Distribution of fossils
0 Existence of hurricanes

Answers

Answer:

we shouldn't have any problem at this time but I think it is important that you are correct answer for this is the closing cost for es una Comunidad de mi país con un gran potencial para el titulo y el de la is the closing cost for a la casa a ver que tal es

Answer:

here are the things that he used Terms in this set (4)

Fossil Correlation. unique remains in distant places.

Rock Correlation. identical rocks, mountains and structures.

Apparent Fit. continents look like puzzle pieces and seem to fit together.

Paleoclimate Data. coal found in cold regions, glacial evidence found in warm regions.

the right one ids d

Explanation:

Where on the trophic pyramid would herbivores be?

A. Secondary Consumers
B. Decomposers
C. Primary Consumers
D. Producers

Answers

Answer:

I think C, primary consumers

trophic level 1 with primary producers such as plants, can move to herbivores at level 2, carnivores at level 3 or higher, and typically finish with apex predators at level 4 or 5.

So a herbavoire would be A , a secondary consumer

What language is spoken by a majority of the people in Latin America?
A.
Portuguese
B.
English
C.
Spanish
D.
French

Answers

Answer:

The anwer would be Portuguese!

Explanation:

Its not Spanish, there are slightly fewer people who speak Spanish in Latin America!

I hope this helps!

Answer:

C. Spanish

Latin America is based on Latin like Spanish Latin so yea, that's your answer thanks.

Which describes a common characteristic of animal-like and plant-like protists?
1*Both can be autotrophs.
2*Both can be unicellular.
3*Both reproduce only asexually.
4*Both have glass-like cell walls.​

Answers

Answer:

2 i think  hope this helps

Explanation:

Answer:

The correct answer is B. Both can be unicellular.



Three rocks are rolling down a hill at the same speed. Rock 1 has a mass of 1 kg, rock 2 has a mass of 1.5 kg, and rock 3 has
a mass of 3 kg. Which rock has the most kinetic energy?
1
2
rock 1
O rock 2
rock 3
all three rocks have the same kinetic energy

Answers

Answer:

rock 3

Explanation:

Rock 3 has the greatest kinetic energy because it has the most mass.

Kinetic energy is the energy due to the motion of a body.

  Given mass:

      Rock 1 = 1kg

      Rock 2 = 1.5kg

      Rock 3 = 3kg

Now, to calculate kinetic energy;

  K.E  = [tex]\frac{1}{2}[/tex] m v²

where m is the mass

           v is the velocity

As we can see, kinetic energy is directly proportional to mass.

The higher the mass, the higher the kinetic energy.

Give three examples of natural resources found in Latin America. Explain which industries use these natural resources and the environmental challenges that can occur as a result

Answers

Answer:

Some of the natural resources found in Latin America are oil, timber, and water.

Explanation:

Latin America is a region that is rich in numerous natural resources. Some that stick out are the oil, timber, and water. The oil is mostly found in the northern, northeastern, and eastern parts of this region, the timber in the northern and central parts, and the water is abundant across most of the region.

The oil is used mostly in the energy and petrochemical industries. The environmental impact is very bad because of the heavy pollution of all spheres. The timber is used in the paper, furniture and floor, and construction industries. The constantly growing demand, unfortunately, has led to large-scale destruction of the forests and endganering a lot of species.The water is abundant in most of this region which has led to a lot of exploitation of the same, mostly in the energy, water supply, and agriculture industries. The energy production has led to a change of the water properties and blocking the movement of the species living in water, the water supply hasn't yet caused any problems, while the agriculture has led to big pollution.

Answer:

:The 3 examples are fertile soil, and minerals, including the Amazon Rainforest. Explanation:Latin America exports mostly in agricultural products and main export commodities incl…

Explanation:

USING FOUR OR MORE COMPLETE SENTENCES, IDENTIFY THREE TYPES OF CULTURES IN THE WORLD AND DESCRIBE ONE CHARACTERISTIC OF EACH. oops caps lol sorry

Answers

Answer:

Explanation:

The question you have asked is a very very wide one, with a lot of different opinions. But if I were to answer, I would say types of culture include;

Clan Culture.

Hierarchy Culture.

Market Culture.

Clan Culture: is a family-like or tribe-like type of environment. A clan culture places a lot of emphasis on consensus and commonality of goals without ignoring that of values. I would also add that Clan cultures are very collaborative and their characteristics include;

Effective communication.

Diversity.

Learning opportunities.

Recognition.

Clear and defined purpose.

Meaning and purpose.

Teamwork.

When two or more elements combine chemically, they form a(n)

Answers

Answer:

Compound

Explanation:

When two or more elements combine chemically, they form a

compound

What is an equation of the line that passes through the point (-6,-4) and is parallel to the line 3y=2x-6

Answers

Answer:

y  =  [tex]\frac{2}{3}[/tex]x

Explanation:

Given parameters:

  Coordinates  = (-6, -4)

   Equation of a the line; 3y = 2x - 6

Unknown:

Equation of the line parallel to this line  = ?

Solution:

The equation of any straight line is expressed as;

              y  = mx  + c

y and x are the coordinate

 m is the slope  

c is the intercept of the y - axis

Now from the equation, let us find the slope;

   3y = 2x - 6

     y  = [tex]\frac{2}{3} x[/tex] - [tex]\frac{6}{3}[/tex]

    y  =  [tex]\frac{2}{3} x[/tex] - 2

The slope is  [tex]\frac{2}{3}[/tex]

Parallel lines are lines that never meets. Therefore they have the same slope;

  the slope of the new line is  [tex]\frac{2}{3}[/tex]

Now,

  for the new line, we need to find the intercept;

        since y = mx + c,

     y  = -4 and x = -6;

           -4 =  [tex]\frac{2}{3}[/tex] x (-6) + c

          - 4  = -4 + c

           c= 0

The equation of the new line is;

            y  =  [tex]\frac{2}{3}[/tex]x

Which of the following groups includes people of mixed ancestry?
i. Amerindian
ii. Mestizo
iii. Mulatto

Answers

Answer:

ametindian

Explanation:

because people of American and Indian can lives there

10) Choose the answer that is not an example of culture:
a) The English Language
b) The new Drake song
c) The Daniel Boone National Forest
d) The food served in the cafeteria

Answers

B- the new Drake song

Answer:okokok

Explanation:

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