5 Human Impacts on the Earth Review

People have been studying the impact humans have had on the world around us for a solid ______ years.

• 25

• 40

• 50

• 65

Human activity could be responsible for the extinction of nearly ______ plants and animals to date.

• 10

• 100

• 1000

• 10,000

What creates and replenishes the foundation of the earth's biological systems?

• Support Services

• Food Services

• Provisioning Services

• Student Services

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS2-4

_______ _________ moderate many of the earth's systems that can get dangerous if they get out of whack.

• Resisting Services

• Regular Services

• Regulating Services

• Restaurant Services

Tags

NGSS.MS-LS2-5

____________ help filter the water we drink, the air we breathe, and provide flood control.

• Decomposers

• Beavers

• Salmon

• Plants

If humans had to do all the things the ecosystems do for us a year, it would cost us ______________.

• Everyone's first born child

• $46 trillion

• $65 trillion

• All 6 infinity stones

Ecosystems with ________ diversity are more resilient to disturbances.

• High

• Low

• Average

• No

Tags

NGSS.MS-LS2-5

In a hectare of land in the Amazon rainforest, there is more different species of plants and animals than there are in all of ______________.

• South America

• Europe

• Asia

• Europe and Asia

Cutting down trees, which regulate the rain in the rainforest, can affect a marine ecosystem through erosion and the washing of chemicals and minerals into the sea is a cause of ______________

• Deforestation

• Oceanification

• Acid Rain

• Pollution

Deforestation can also lead to _______________, or the spread of dry, unproductive landscapes, with other factors like overgrazing and over-irrigation

• Defarmification

• Losing an infinity stone

• Decimation

• Desertification