Human Impact on the Environment

Question 1

Many grasslands in the United States have been converted to farmland to grow crops. As a result, many organisms have lost the resources they need to survive. Which short-term change is this an example of?

Revolt · Accepted Answer

B: habitat destruction

Question 2

Which of these are considered long-term human-induced environmental changes? Check all that apply. pollutionhuman-created mass extinctioneutrophicationnon-sustainable harvestingozone layer destructionglobal warming

Revolt · Accepted Answer

B: human-created mass extinction; E: ozone layer destruction

Question 3

Elephants are hunted for their ivory tusks. This has led to a decline in the elephant population. Which short-term change is this an example of?

Revolt · Accepted Answer

C: non-sustainable harvesting

Question 4

Nonnative species are typically introduced into an area because they serve a purpose. Why was kudzu introduced into the United States? Check all that apply.Kudzu was introduced as an ornamental plant.Kudzu was introduced by accident on a cargo ship.Kudzu was introduced to help control a native species that was a pest.Kudzu was introduced as a way of preventing soil erosion.Kudzu was introduced to help farmers produce more crops.

Revolt · Accepted Answer

A: Kudzu was introduced as an ornamental plant.; D: Kudzu was introduced as a way of preventing soil erosion.

Question 5

Which statement accurately describes global warming?

Revolt · Accepted Answer

C: Global warming occurs naturally on Earth and is enhanced by human activities.

Question 6

How do seabirds get caught in fishing nets?

Revolt · Accepted Answer

C: The birds mistake the metal hooks for fish and get caught.

Question 7

Which of these are effects of environmental change on populations? Check all that apply.decrease of resourcesextinctionimpacts on growth and developmentloss of habitatchange in competitionspeciation

Revolt · Accepted Answer

A: decrease of resources; D: loss of habitat

Human Impact on the Environment Answers

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