Environmental Science Final Review

Pollution can originate from a single point source.

• True

• False

Answer explanation

True. Pollution can indeed originate from a single point source, such as a factory or a sewage outlet, where contaminants are released into the environment from a specific location.

Tags

NGSS.MS-ESS3-3

Ecosystems do not depend on nutrient cycles for balance.

• True

• False

Answer explanation

False is correct because ecosystems rely on nutrient cycles to maintain balance. These cycles ensure the availability of essential nutrients for organisms, supporting growth and sustaining life within the ecosystem.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which cycle is unique for lacking a gaseous component?

• Water cycle

• Carbon cycle

• Nitrogen cycle

• Phosphorus cycle

Answer explanation

The phosphorus cycle is unique because it does not include a gaseous phase. Unlike the water, carbon, and nitrogen cycles, which have gas forms, phosphorus primarily moves through soil, water, and living organisms.

Affluence can have both positive and negative effects on the environment.

• True

• False

Answer explanation

True. Affluence can lead to increased consumption and waste, negatively impacting the environment. However, it can also provide resources for sustainable practices and technologies, showing both positive and negative effects.

Tags

NGSS.MS-ESS3-4

______________________ is the buildup of pollutants at higher levels of the food chain.

• porosity

• water pollution

• wastewater

• biomagnification

Tags

NGSS.MS-LS2-3

______________________ is the process of removing the salt from ocean water.

• water pollution

• point source pollution

• desalination

• porosity

______________________ is water waste that comes from many different sources.

• biomagnification

• point source pollution

• nonpoint source pollution

• wastewater

______________________ is the introduction of chemical, physical, or biological agents into water that degrade water quality and adversely affect the organisms that depend on the water.

• water pollution

• desalination

• watershed

• potable

Tags

NGSS.MS-ESS3-4

_________________ is the area of land that is drained by a river.

• surface water

• watershed

• dam

• wastewater

Tags

NGSS.MS-ESS2-4

Based on the graph shown, what is the effect of removing a keystone species on an ecosystem?

• richness oscillates between extremes

• richness stabilizes

• richness increases

• richness decreases

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4