Question

As populations in North America grow, so does the need for wood to build houses, stores, and other buildings. Select the statement that best describes the long-term global effects of this behavior. (2 points)
A.People will need to plant more trees and in a few months the entire problem will be taken care of.

B.If we control the amount of forests cut, the people will go somewhere else to find wood. This is not a concern as long as they are not cutting down the forests in North America.

C.Populations are falling in the rest of the world so the extra wood can come from other countries that have a surplus.

D.In order to meet the demand, forests have been cut down at an alarming rate. If we do not find another source of building materials, our forests, an important natural resource, will all disappear.
2 points

QUESTION 2

Desalinization plants remove the salt from sea water and make it usable for drinking and irrigation. Review the following statements and select the one that best describes how this technology has had a positive impact on the environment. (2 points)

A.)Desalinization plants are expensive to build and maintain; however, on some small islands, where there is no fresh water, they provide water to those who need it. Without these plants people were dependent on capturing rainwater in order to survive. In times of drought, when there was not enough rain, people used to have to buy water that was imported from other areas.

B.)Of all the water on Earth, 97% is salt water, 3% is fresh water and much of this is locked up in ice. All living things need fresh water to survive. As populations grow, the demand for fresh water will increase. If humans can use desalinization plants to make the fresh water they need, more fresh water will be available for the plants and animals that need it.

C.)Some islands in the Caribbean do not have any fresh water. This has limited growth on these islands. Building a desalinization plant could provide jobs for the local people. This can make the economy on these islands more stable.

D.)Some areas by the coast are very remote and far from fresh water supplies. These areas are great places to build vacation resorts. These resorts use desalinization plants to provide their guests with fresh water. Desalinization plants will allow for more resorts to be built in remote areas along the coast.
2 points

QUESTION 3

If we wanted to avoid using a non-renewable resource, because we do not want to harm the environment, we could burn _____ to produce electricity. (2 points)

A.)biomass

B.)coal

C.)natural gas

D.)petroleum
2 points

Answer 1

question 1, A

Question 2, D

Question 3, B

hope this helps :)