Humans can causes changes to the environment that are...

• positive

• negative

• positive or negative

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

What negative effect(s) can occur when trees are removed from an ecosystem?

• animal habitats are lost

• the amount of oxygen decreases

• soil erosion occurs more quickly

• all of these

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

_________ is a valuable natural resource that is burned for fuel and used in products such as plastic.

• aluminum

• water

• wood

• oil

Tags

NGSS.MS-PS1-3

One way that people can help underwater coral ecosystems is...

• building dams to change the flow of water

• placing large structures in the water

• encouraging people to fish more often

• creating laws against swimming

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Invasive species are ______ to an ecosystem.

• native

• beneficial

• harmful

• all of these

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Invasive species often take over ecosystems because...

• they are aggressive

• they have few predators

• they tend to be intelligent

• they don't need much food

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Severe ________ played an important part in the creation of the Dust Bowl.

• droughts
• rainfall
• tornados
• thunderstorms

Tags

NGSS.MS-ESS2-5

When did the Dust Bowl take place?

• 1920's
• 1930's
• 1940's
• 1950's

Tags

NGSS.MS-ESS3-4

Poor farming practices (techniques) caused soil __________.

• preservation
• erosion
• retention
• production

In the Deepwater Horizon incident, the oil that entered the ecosystem came from

• a tanker ship

• the drilling platform

• an underwater earthquake

• underneath the ocean floor

Tags

NGSS.MS-ESS3-1

NGSS.MS-ESS3-4