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fgiga [73]
2 years ago
14

Which of the following statements about biodiversity is true? a. Changes to biodiversity always positively affect an ecosystem.

b. Changes to biodiversity always negatively affect an ecosystem. c. Changes to biodiversity can positively and negatively affect on an ecosystem. d. Changes to biodiversity never affect an ecosystem.
Chemistry
1 answer:
erma4kov [3.2K]2 years ago
4 0

Answer:

I believe C

Explanation:

Saying it always does one thing or another is mostly not the case. When it comes to biodiversity, there can be positive impacts! But an ecosystem is affected by everything in it's biodiversity.

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To study earths interior, geologist often rely on indirect methods, such as evidence from fossils.
igomit [66]

Answer: false

Explanation:

It is false that to study Earth's interior, geologists often rely on indirect methods, such as evidence from fossils. They rely on seismic wave.

6 0
3 years ago
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As much as 25 percent of the fruits and vegetables grown in Chinese agricultural regions rot before they can be transported the
gulaghasi [49]

C. Developing effective methods of food preservation

Explanation:

The development of effective methods of food preservation is a much more smaller and manageable problem that contributes to the complex problem.

The percentage of food rotting is not as a result of lack of an effective preservation technique as highlighted in the passage. It is due to the long distances of agricultural area from where the farms are located.

  • To cut the loss, efficient and rapid transportation techniques needs to be put in place to carry the fruits and vegetables to the area where they are needed.
  • This is the most complex problem that if solved can peg back food rot.
  • Additional measures should be put in place to preserve the food.

Other options does not address the subject matter  

learn more:

Preservation brainly.com/question/4853419

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7 0
3 years ago
Many food chains together create a______
Amanda [17]
Many food chains together create a food web.


hope this helps,, have a nice day :))
3 0
3 years ago
Fractional distillation of a mass mixture of 10 g water and 10 g perchloric acid would yield a distillate with what composition
jek_recluse [69]

Azeotrope is a mixture of two or more liquids whose proportions cannot be changed by simple distillation.

Explanation:

Nitic acid and water is an example of azeotrope. The composition of 68% of nitric acid and 32% of water by mass in a boiling point of 393.5k.

The composition of perchloric acid (71.6%) and water boils at 203°c. Pure iron solution weights about 10g is placed in a beaker, hydrochloric acid and nitric acid mixtures are added and heated to dissolve. Add perchloric acid until it evaporate and produces white smoke.cool it down add water and dissolve the salt.

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The law of reflection states that if the angle of incidence is 43 degrees, the angle of reflection is ___ degrees.
Vesna [10]

43 degrees

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4 0
3 years ago
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