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Changes to Ecosystems

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

Overpopulation

a)

all living things that belong to the same group and live in the same area

b)

having too many people or organisms in a particular area

c)

the place where an organism lives

d)

process by which producers use the energy in sunlight to create their own food

2.

Habitat

a)

all living things that belong to the same group and live in the same area

b)

having too many people or organisms in a particular area

c)

the place where an organism lives

d)

process by which producers use the energy in sunlight to create their own food

3.

Increase

a)

to become bigger or greater in amount

b)

to become smaller or less in amount

4.

Decrease

a)

to become bigger or greater in amount

b)

to become smaller or less in amount

5.

Invasive species

a)

a living thing that is introduced to a new environment where it did not come from

b)

the clearing, or cutting down, of forests

c)

a substance used to destroy pests (as insects or weeds)

d)

the process of taking things from the ground

6.

Mining

a)

a living thing that is introduced to a new environment where it did not come from

b)

the clearing, or cutting down, of forests

c)

a substance used to destroy pests (as insects or weeds)

d)

the process of taking things from the ground

7.

Deforestation

a)

a living thing that is introduced to a new environment where it did not come from

b)

the clearing, or cutting down, of forests

c)

a substance used to destroy pests (as insects or weeds)

d)

the process of taking things from the ground

8.

Pesticide

a)

a living thing that is introduced to a new environment where it did not come from

b)

the clearing, or cutting down, of forests

c)

a substance used to destroy pests (as insects or weeds)

d)

the process of taking things from the ground

9.

Fertilizer

a)

the wearing away of soil by wind and water

b)

a substance that is added to soil to help the growth of plants.

c)

the clearing, or cutting down, of forests

d)

a substance used to destroy pests (as insects or weeds)

10.

Soil Erosion

a)

the wearing away of soil by wind and water

b)

a substance that is added to soil to help the growth of plants.

c)

the clearing, or cutting down, of forests

d)

a substance used to destroy pests (as insects or weeds)