Environmental Changes

The gradual change of organisms in an ecosystem is called

• global warming

• succession

• pollution

An example of a natural event that causes the environment to slowly change is:

• A volcano erupts and destroys centuries of forest growth within hours.

• A mudslide sweeps through and destroys years of plant growth.

• A river flowing through an area weathers the rock to create a deep canyon.

Tags

NGSS.MS-ESS2-2

An environment can change quickly or slowly

• True

• False

Tags

NGSS.MS-ESS2-2

An environment can be changed suddenly by a natural event such as a:

• volcano eruption

• earthquake

• flood

• All of the above

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

A(n) _______________ is any nonnative plant/animal that takes over an environment.

• invasive species

• succession

• algae

• pollution

Any harmful substance that gets into the environment:

• eruption

• extinction

• pollution

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

This table shows the population of different organisms before and after beavers built a dam. Which species was harmed the most?

• Wood duck

• White-breasted nuthatch

• Blackbelly salamander

• Green frog

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Protecting ecosystems and the organisms living in them is called:

• pollution

• extinction

• conservation

Tags

NGSS.MS-LS2-5