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Ocean acidification

Total questions: 6

Worksheet time: 3mins

Name
Class
Date
1.

What is ocean acidification?

a)

Adding salt to the ocean

b)

Rising temperatures in the ocean

c)

The ocean becoming more acidic because of absorbed carbon dioxide (CO2)

d)

Cleaning the ocean

2.

What gas is mainly responsible for ocean acidification?

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

d)

Helium

3.

How does ocean acidification affect coral reefs?

a)

It makes them grow faster

b)

It bleaches or damages them

c)

It turns them into sand

d)

It has no effect

4.

What happens to shells and sea creatures with hard shells in acidic oceans?

a)

Their shells grow bigger

b)

They change colour

c)

They turn into jellyfish

d)

Their shells become weaker

5.

Which of these human activities increases CO2 in the atmosphere?

a)

Planting trees

b)

Riding bicycles

c)

Burning fossil fuels like coal and gas

d)

Using solar panels

6.

What can you do to help reduce CO2 emissions?

a)

Use renewable energy like wind or solar power

b)

Recycle and reuse materials

c)

Plant more trees

d)

All of the above