Question

1) A region of the country is rapidly growing in population, causing the demand for electricity to go up each year. As a result, a new source of electricity is needed. This particular region of the country has plenty of agriculture, rivers, and access to coal deposits underground. Which of the following would be the cheapest way for this region of the country to make electricity, have minimal impact on the environment, yet not add carbon dioxide to the atmosphere?
Group of answer choices

A)Use the agriculture biomass to generate a renewable fuel that can be burned to generate electricity

B)Use the coal deposits to generate electricity in a few coal fired facilities

C)Build a nuclear power plant in the middle of the region

D)Build dams along the rivers to generate electricity


2)The image provided shows a partial river food web.



The local town relies on this river ecosystem to sustain their population both economically and as a source of food. Using the food web provided, which statement provides the best reasoning for regulating the amount of fish removed from the river by humans.

Group of answer choices

A)Regulation will help the ecosystem to remain balanced and contribute to the stabilization of other populations of river organisms.

B)Regulation will increase the amount of energy transferred from the catfish to the eagle.

C)Regulation will allow contaminated sediments to decrease in the river due the removal of the contamination source.

D)Regulation will ensure that carp will not overpopulate the ecosystem and begin to consume larger organisms like the salmon.

Answer 1

Answer:

The cheapest way for the country to make electricity would be

A) Use the agriculture biomass to generate a renewable fuel that can be burned to generate electricity

The statement provides the best reasoning for regulating the amount of fish removed from the river by humans is:

A) Regulation will help the ecosystem to remain balanced and contribute to the stabilization of other populations of river organisms.

Explanation:

For the electricity, the use of Biomass meets the demands due to the fact that, it has minimal impact on the environment, does not add carbon dioxide to the atmosphere. Also, it is renewable form of energy.

For the regulation of the amount of fish removed from the river helps to maintain the ecosystem balance. If it was not done, the fishes found in the river will be totally harvested thereby disrupting the chains in that river ecosystem.