Unit 4, Lesson 1: Impact on Land

Unit 4: Human Impact on the environment

Term 3

EOT

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Compiled by: Ms Taybah Jaffar

Al Ma’ali School

Cause: Cutting down trees for human activities

Effect: less oxygen to breathe, animal homes destroyed, soil quality decreases

Deforestation

Cause: Clearing land for development of land, housing, buildings

Effect: habitat destruction, loss of farmland, increase chances of flooding

Urbanization

Cause: more food needed for increase in human population

Effect: More pesticides used, soil quality decreases, space is needed

​Agriculture

Multiple Choice

Which best describes something that would decrease the amount of carbon dioxide in the

atmosphere?

• increasing the size of a landfill

• decreasing the size of a wetland

• increasing the size of a national forest

• decreasing the size of an oil spill

Multiple Choice

Which of the following is NOT an impact of Deforestation

• It destroys habitats, which can lead to species’ extinction

• it increases the percentage of carbon dioxide in air

• It increases the soil quality

• It negatively affects air quality

Multiple Choice

Which is NOT an impact of Deforestation?

• Loss of animal habitat

• Extinction of species

• Decrease in the rate of photosynthesis

• Less carbon dioxide remains in the atmosphere

Places where trash and garbage is stored.
must have trash that decomposes very slowly
can affect soil quality and groundwater supplies

​​Landfills

Waste material from hospitals, chemicals, batteries
does not go to the landfills
can affect health of humans and animals, water and soil quality and air quality

Hazardous Waste

Multiple Choice

why is proper management of landfills important?

• To prevent the formation of new landfills

• To maximize the production of renewable energy

• To minimize the release of harmful substances into the environment  

• To promote the growth of plants and wildlife in landfill areas

Multiple Choice

Look at the picture and chose the right answer.

• A

• B

• C

• D

Multiple Choice

Look at the picture and chose the right answer

• A

• B

• C

• D

Compiled by: Ms Taybah Jaffar

Al Ma’ali School

Compiled by: Ms Taybah Jaffar

Al Ma’ali School

Reduce, Reuse, Recycle

Reuse: finding another use for
an item instead of throwing it
away.

Recycle: using material again
and again

Reduce: limiting the amount
used initially

Multiple Choice

Which describes an effect of recycling?

• Recycling increases land usage.

• Recycling decreases land usage

• Recycling increases pollution. 

• Recycling help conserve Earth's land resources

Compiled by: Ms Taybah Jaffar

Al Ma’ali School

Compiled by: Ms Taybah Jaffar

Al Ma’ali School

Managing land resources:
●Some land has renewable resources and must be managed

●Landfills take up valuable space and risk more pollution.

●Forests and ecosystems must be preserved.

●Reforestation: replanting of trees and plants to replace the ones that have
been removed.

●Reclamation: restoring land distributed by mining. This means that mined
areas can be reshaped and covered with soil and then replanted with trees.

●Farmers can use organic techniques to maintain soil quality and improve crop
yield.

Multiple Choice

The process of restoring land disturbed by mining called ....

• reclamation

• Reforestation 

• Deforestation

• desertification 

Multiple Choice

Which one involves planting trees to replace ones that have been removed?

• reclamation

• Reforestation 

• Deforestation

• desertification