What long-term impact could the destruction of large areas of forests have on Earth?

• decreased rates of erosion
• increased atmospheric carbon dioxide levels
• decreased amounts of acid rain
• increased atmospheric oxygen levels

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Why is it important to conserve the biodiversity of Earth?

• to decrease the amount of global predator populations
• to decrease the stability of major global ocean currents
• to increase the stability of ecosystems during environmental changes
• to increase the amount of nonrenewable resources located in the lithosphere

Tags

NGSS.MS-LS2-5

If the population of a certain predator increases, there is often _______ its prey

• a decrease the population of
• an increase of the population of 
• great news for its prey of
• no  impact found on

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

Invasive species are:

• non-native
• harmful to an ecosystem
• organisms that can lack predators in the new environment
• all of the answers are correct

Tags

NGSS.MS-LS2-2

The number one threat to biodiversity

• pollution
• fragmentation
• habitat destruction
• limiting factors

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

How can people reduce the amount of resources they use?

• make more landfills and garbage dumps
• buy products with lots of packaging 
• use water, electricity, and gas conservatively and recycle metal, paper, and glass
• Think only about what you need right now and don’t worry about the future

Tags

NGSS.MS-ESS3-4

Which is a main cause of soil erosion?

• strong winds
• flash floods
• human activity
• fossil fuels

Tags

NGSS.MS-ESS3-4

Which organism would have the greatest concentration of pollution?

• zooplankton
• large fish
• fish-eating birds of prey
• small fish

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Insecticides are sprayed over a large area in an effort to reduce the number of grasshoppers that are eating the corn plants. How will this change affect this food chain? 

• The number of grasshoppers will increase
• The number of lizards will increase
• The number of lizards and hawks will decrease
• The number of grasshoppers, lizards, and hawks will decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

All of the following are examples of environmental changes that can be caused by humans except - 

• clearing land for housing developments
• pesticides
• volcanic eruption
• pollution

Tags

NGSS.MS-ESS3-4