7) What percentage of ppm of dissolved oxygen indicates good water quality?

a) 6.7
b) 8
c) 4.5
d) Below 4.5

Answers

Answer 1

Answer:

The answer is c. 4.5


Related Questions

PLEASE HELP I WILL MARK BRAINALISTTTT

Answers

Answer:

The answer for this is a protein D

Two flasks each contain a clear liquid . The liquid in Flask A turns blue when shaken . The liquid in Flask B does not . What would be the next logical step in determining if the liquids are the same or different .

Answers

aAnswer:

aa

Explanation:

HELLO FELLOW EARTHLINGS!! IF ANYONE IS ALIVE OR AWAKE PLEASE ATTEMPT TO ANSWER THIS QUESTION. IF 2 PEOPLE ANSWER, THE PERSON WITH THE BEST RESPONSE WILL GET BRAINLIEST. THE QUESTION IS: Explain in full detail Newton’s 3 Laws of Motion. For each Law, describe how it applies to your life.

PLEASE ANSWER ALL PARTS TO RECEIVE CREDIT! THANK YOU!

Answers

Answer:

1st Law of Motion: A object will not change its motion unless a force acts on it. 2nd Law: The force of a object = Mass X Acceleration. 3rd Law: When two objects interact they cause forces to each other of equal magnitude and opposite direction. Can't really answer the second part because i don't know how it affects your life, 1st Law effected my life yesterday when i skate boarding and had to stop my skateboard from rolling down a hill. 2nd law effected my life when i did a egg drop project and had to use object = Mass X acceleration calculation to make sure the egg wouldn't break .3rd law effected my life when I bumped into someone at the mall and we got bushed back in opposite directions

Explanation:

1st Law of Motion: A object will not change its motion unless a force acts on it. 2nd Law: The force of a object = Mass X Acceleration. 3rd Law: When two objects interact they cause forces to each other of equal magnitude and opposite direction. Can't really answer the second part because i don't know how it affects your life

How can scientists tell what a star is made of?

Answers

Answer:

i believe the answer is c

Explanation:

hope this helps :) have a nice day !!

**please let me know if this was wrong**

Answer: C

Explanation: I hope it helps! :)

What might be a disadvantage of having a large bean?

Answers

Answer:

no dangers

Explanation:

In what ways are the features of a plant living in water different from a plant living on land ?

Answers

Answer:

Earth, both on land and in water. Wherever they

live, plants provide food and oxygen to the

creatures that live nearby – including humans!

In this activity we will examine both a

terrestrial (land) plant and an aquatic (water)

plant. They have many things in common, but the

ways they get air, food and water change along

with the environments in which they live.

Explanation:

where does the pollen go

Answers

Answer:

To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination.

Explanation:

To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination.

animals like fish and reptiles rely on ____ environment to regulate their tempature and are known as __

Answers

Answer:

external, cold blooded

Explanation:

They rely on fungi or plankton

They are known as decomposers


Hope this help!! Happy March

is a rotting log considered living or non living? why?​

Answers

Answer:

A rotting log is nonliving. However, it can have mold, lichen, or fungus growing on it, which is not the log itself. Those three things are living. And though the log was once a living tree, at it's current state, it is nonliving.

I hope this was helpful!

first answer will get brainliest

Answers

Answer:

calorie

Explanation:

Answer:

A-celsius

Explanation:

The specific heat capacity of a material is the energy required to raise one kilogram (kg) of the material by one degree Celsius (°C). The specific heat capacity of water is 4,200 joules per kilogram per degree Celsius (J/kg°C).

Question 10 of 25
Atoms have the same number of electrons as what other particle?
A. Protons
B. Atomic mass
C. Neutrons
D. Photons
SUBMIT

Answers

The answer is A. Protons

Elements such as carbon can move through the
environment and organisms in a cycle because
living and nonliving things interact in _______.
A. cells
B. species
C. organisms
D. ecosystems

Answers

The answer would be D

Elements such as carbon can move through the environment and organisms in a cycle because living and nonliving things interact in ecosystem. The correct option is D.

What is an ecosystem?

An ecosystem is made up of all the organisms and the physical environment in which they live.

These biotic and abiotic elements are linked by nutrient cycles and energy flows. Photosynthesis introduces energy into the system, which is then incorporated into plant tissue.

Healthy ecosystems clean even our own water, purify our air, keep our soil in good condition, regulate the climate, recycle nutrients, and provide us with food.

They supply raw materials and resources for pharmaceuticals and other uses. They are the foundation of all civilization and the lifeblood of our economies.

Because living and nonliving things interact in an ecosystem, elements such as carbon can move through the environment and organisms in a cycle.

Thus, the correct option is D.

For more details regarding ecosystem, visit:

https://brainly.com/question/13979184

#SPJ6

The race is now in earnest. How do the ""discoverers"" come to their conclusion about the structure of DNA? What information did they need?

Answers

They needed the general helix structure and the symmetry 15.

The information needed by them is about its helix structure.

DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs. Duplication of the genetic information occurs by the use of one DNA strand as a template for formation of a complementary strand.

Learn more:

brainly.com/question/13695548

Are pollination, fertilization happens and the ovules grow into seeds within a fruit?
A. True
B. False​

Answers

Answer:

True

Explanation:

Answer: True is the answer

A compound that releases hydroxide ions in solution would most likely have which chemical property?

It would react with lipids to form soap.
It would react with metals to form a salt and water.
It would react with metals to form hydrogen gas.
It would react with carbonates to form carbon dioxide.

Answers

Answer: I think it would be 4/D It would react with carbonates to form carbon dioxide.

Answer:

Its D

Explanation:

Me Smort, Have A Meme

HEYOO PEEPS The more inertia, the more __________ we need.


speed


acceleration


force

Answers

Answer:

i believe that the answer is "force"

i hope this is the answer you are looking for

Explanation:

Since Tony does not have PKU, what is the percent chance that he is a carrier

Answers

Answer:

0.01%

Explanation:

When two oceanic plates collide, one plate may sink under the other as it is forced down into the mantle.

What landform is most likely to result from this movement of the plates?
A. mountain
B. fault
C. trench
D. rift valley

Answers

C, When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone.

Answer:

c

Explanation:

i did the test *^*

What what does the agriculture mean ​

Answers

Answer:

Agriculture is the art and science of cultivating the soil, growing crops and raising livestock. It includes the preparation of plant and animal products for people to use and their distribution to markets. Agriculture provides most of the world's food and fabrics.

Agriculture is the art and science of cultivating the soil, growing crops and raising livestock. It includes the preparation of plant and animal products for people to use and their distribution to markets. ... These products, as well as the agricultural methods used, may vary from one part of the world to another.

how is glucose made in photosynthesis used by plants and animals??

best answer gets brainliest

Answers

Answer:

Glucose provides plants with needed food through a process called photosynthesis. This process helps plants convert the energy they take in from sunlight into sugar to help nourish the plant. ... Plants use these to form glucose and oxygen.

Answer:

Glucose is initially formed through the act of photosynthesis, which is how plants use water and carbon dioxide to produce energy. From this combination of carbon dioxide and water,a carbohydrate is formed which is initially used in the leaf structure for a variety of purposes.

Hope it helps you!!!

Peter, who lived 200 years ago, had a house with no rats in it. One day, his wife
heard some scurrying around on his straw roof. He went up and guess what he
found? A rat's nest. Peter was really smart--where did he think the new rats came
from? Well 200 years ago, people believed that part of the straw roof somehow
turned into rats. Why would Peter, even though he was very intelligent, accept this
idea?
We're all really smart, but its not like we're the smartest people in the world. We all know that it takes a momma rat and daddy rat to make some baby rats.
This is because we understand something called the cell theory, because the cell theory is just part of our culture now. It's something a lot of our behaviors and
other ideas are based.
1. All living things are made of cells
2. Cells come from other cells
3. Cells are the smallest unit of life

1. Using two parts of the cell theory, explain to Peter why these two parts show
that the straw roof did not turn into the rats.
2. What do we mean when we say 'The cell is the smallest unit of life? Explain as if
you were talking to Peter, who has no idea about cells.

Answers

Answer:

1 is always rifht

Explanation:

i think so

All living things are made of cells  and Cells come from other cells are the two parts of the cell theory.

These two statements are used to show to peter about the presence of rats in the straw roof. The straw roof did not turn into the rats because straw is a non-living whereas rats are living. Rats increases its population when the male rate mate with the female rate produces baby rats.All living organisms has the ability of reproduction through sexual and asexual.The cell is the smallest unit of life' from this statement we mean that the body of all living organisms are made up of cells just like a building which is made up of bricks so we can say that this example is enough for the Peter to understand the statement about cells.

Learn more: https://brainly.com/question/21867053

The Richter scale ranges from 1 to 10 in increments of tenths and measures the amount of energy released by an earthquake, not the amount of damage or the effect on people. How many earthquakes of magnitude 4.0 does it take to release the same amount of energy released by one earthquake of magnitude 8.0? (Show your work)

Answers

so the answer is..........

The menopause is a developmental stage in women that is due more to genes than environment. It would not have evolved unless there were advantages for women, for families or for the community as a whole. What could these advantages be? Think at least two.

Answers

Cercel ben Türkçe konuşuyorum

If the amount if algae in the ocean decreases by 50% the population of its consumers, goby fish will?
A. Go extinct
B. Decrease to its carrying capacity
C. Increase by 50%
D. Increase to its carrying capacity

Answers

Answer:

B. Decrease to its carrying capacity

Explanation:

Goby fish feed over algae for their survival and growth but if 50% of algae in the ocean decreases then the population of goby fish will decrease to its carrying capacity.

This is so because then the goby fish will be dependent on the left number of algae and maximum population size will depend on the rest 50% of food or algae available.

Hence, the correct answer is "B. Decrease to its carrying capacity".

A paper mill located on a coastal region of Florida experienced an accident in which a large portion of toxic waste from the plant leaked into the ocean. This waste contained dioxins which affect animal health and the environment. The company cleans up the waste and the state requires that they hire an ecologist for the next 10 years to monitor the area.

Which statement best explains why the state required the company to hire an ecologist?

Group of answer choices

The state wants to be sure there are not new, mutated species.

The state needs to ensure the company spent enough money restoring the ecosystem.

The state wants to see if the spill will have a continued impact on biodiversity.

The state needs to be sure the company will not be sued by an environmental agency.

Answers

Answer:

C its the only one that makes sense to me

Explanation:

Answer:

an Environmental Scientist, who can identify, prevent, and reduce pollution and hazards in and around the site

Explanation:

Choose the word that best completes each sentence.
Plants are ________. They make their own food.
Animals are ________.
They consume other organisms for food. (20 Points)

Answers

Answer:

Plants are autotrops

Animals are Heterotrops

Hope it helped

All the best!!

1. Why is transport of materials necessary in a plant or an animal? Explain.
2. What makes the blood look red?
3. Why is it necessary to excrete wasto products?
4. Describe the function of the heart,
5. Does transpiration serve any useful function in plants? Explain.
6. What are stomata? Give two junctions of stomata.​

Answers

Answer:

1 so that all parts of the plants and animals Get Enough nutrients and oxygen

2 the pigment called haemoglobin makes it red

3 waste products such as urea will cause great harm to the body is not excreted

4 the heart pumps blood the blood contains nutrients and oxygen facial transported to other organs so that the cells can operate

5 transpiration is the loss of water by plants. it helps with cooling down the plant after photosynthesis. Just the Way We sweat

6the stomata opens and closes to allow water to pass through it therefore transpiration occurs

¿el significado de comedia?​

Answers

Answer:para hacer reír a la gente y hacer brillar su día

Explanation:

what specific event prompted Dr.Bass to create the body farm?

Answers

Before having the farm, he was asked to estimate the post - mortem interval of some human remains, and then they indicated because the flesh that was still there they could tell it was a year ago.

in which layer would you find the most organic matter?
a.bedrock
b. horizon c
c. subsoil
d. horizon a

Answers

I think it is subsoil but i’m not completely sure

Answer:

D

Explanation:

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