Human Impact

Which statement describes the current theory about the relationship between the human population and mass extinction?

• The human population is increasing, so the likelihood of a mass extinction is also increasing.

• The human population is increasing, so the likelihood of a mass extinction is decreasing.

• The human population is decreasing, so the likelihood of a mass extinction is also decreasing.

• The human population is decreasing, so the likelihood of a mass extinction is increasing.

Tags

NGSS.HS-LS2-7

NGSS.HS-LS4-5

In the 1980s laws were passed to reduce the amount of certain chemicals used by companies and individuals. According to these laws, the use of chlorofluorocarbons, or CFCs, should be reduced and eventually eliminated. These compounds contain chlorine and cause problems when released into the Earth’s atmosphere. These laws are meant to reduce which human-induced environmental change?

• nonnative species introduction

• non-sustainable harvesting

• ozone layer depletion

• eutrophication

Which human-induced change results in increased competition caused by an initial increase in the number of organisms in a habitat?

• non-sustainable harvesting

• nonnative species introduction

• ozone layer depletion

• mass extinction

Tags

NGSS.HS-LS2-7

NGSS.HS-LS4-5

A local plant nursery uses large sprinklers to water the plants twice a day. The water contains phosphorus, which is a fertilizer that helps plants grow. Some of the water becomes runoff and ends up in nearby streams and lakes. This is an example of which type of short-term human-induced environmental change?

• eutrophication

• non-sustainable harvesting

• nonnative species introduction

• deforestation

Tags

NGSS.HS-LS2-6

NGSS.HS-LS2-7

A large power plant burns coal to generate electricity for nearby homes and businesses.

This contributes most directly to which short-term human-induced environmental change?

• habitat destruction

• eutrophication

• global warming

• wildlife hazard

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

Which of the following are examples of short-term, human-induced environmental changes? Select three answer choices.

• mass extinction

• global warming

• deforestation

• ozone layer destruction

• pollution

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Which situation is an example of nonnative species introduction?

• A huge volcanic eruption in Washington destroyed many habitats.

• A large oil spill in the Gulf of Mexico killed many organisms that lived there.

• Horseshoe crabs in the waters of Virginia have been overfished, and their numbers have declined.

• Water hyacinths from Asia now grow in the United States and are crowding out animals and other plants.

Tags

NGSS.HS-LS2-7

NGSS.HS-LS4-5

Which chemicals are major contributors to ozone layer destruction? Select two answer choices.

• phosphorus

• nitrogen

• bromine

• chlorine

• carbon dioxide