3. Environmental functions of tropical forests

Environmental functions of tropical forests

​​Generate oxygen

Prevent soil erosion

​​Prevent coastal erosion

​​Contribute to carbon storage

Provide habitats for wildlife

You have 3 minutes to read pg. 128 of your TB before your quiz.​

Generate oxygen

Fill in the Blanks

Tropical forests support the survival of organisms by generating

Fill in the Blanks

They generate oxygen through a process called

Multiple Choice

They can produce oxygen throughout the year because they are...

• evergrey

• eveready

• evergreen

• everyday

Watch this video carefully and answer the quiz questions later.

Contribute to carbon storage

Multiple Choice

Tropical forests contribute to...

• carbon storage

• cold storage

• carbon dioxide

• carbon monoxide

Fill in the Blanks

Tropical forests store carbon by absorbing this gas called

Multiple Choice

This process is called

• phototaking

• photography

• photographer

• photosynthesis

Multiple Choice

The carbon dioxide reacts with (A) and (B) to produce (C).

• A: Sunlight

  B: Water

  C: Carbon dioxide

• A: Sunlight

  B: Carbon dioxide

  C: Water

• A: Sunlight

  B: Carbon dioxide

  C: Glucose

• A: Sunlight

  B: Oxygen

  C: Glucose

Fill in the Blanks

The glucose, which contains carbon and helps the tree to grow.

This glucose is stored in which part of the tree?

Fill in the Blanks

When the leaves die and fall, they contribute to carbon storage in the...

​Watch this video

Read your TB p.g. 132 and 133 and learn how tropical forests help to prevent soil erosion.

​Some text here about the topic of discussion.

Prevent soil erosion​

Multiple Select

How does rain cause erosion? Select those that apply.

• The raindrops loosen the soil.

• The rain increases the amount of water.

• The rainwater washes the soil away.

• The rain makes the soil colder.

Multiple Select

How do tropical forests reduce soil erosion? Select the one that does not apply.

• The leaves provide oxygen to the rain.

• The leaves and branches slow down the ralling rain drops, making them less forceful,

• The leaves absorb sunlight which makes the temperature warmer.

• The roots of the plants hold the soil together.

​Watch this video

Read your TB p.g. 132 and 133 and learn how tropical forests help to prevent soil erosion.

​Some text here about the topic of discussion.

Prevent coastal erosion

Multiple Choice

The tropical forest that helps to prevent coastal erosion is

• Tropical rainforest

• Tropical mangroves

Multiple Choice

How do mangrove trees prevent coastal erosion?

• The roots fight with the waves and chase them away.

• The roots become a blackhole for all the waves.

• The roots help to stabilise the sediments.

Fill in the Blanks

The roots, trunks and branches of mangrove trees cause

that causes the waves to lose energy.

Multiple Choice

Because of friction, the waves will hit the coast with

• less force

• more force

Multiple Choice

When the waves hit the coast with less force, they will be able to cause more soil erosion.

• True

• False