Planet Earth Revision - Year 5

Pollution _________________________.

• is harmful materials put into the environment

• found in air, water, and land

• affects plants, animals, and people

• All of the above

Which of the following does NOT cause water pollution?

• oil spills
• garbage
• fertilizers from farms
• smoke

Smog is an example of ______________ pollution.

• land

• water

• air

• noise

How can trash effect wildlife?

• Wildlife animals cannot hunt prey because of the smell of garbage.
• Trash makes it hard for wildlife to camouflage.
• Wildlife could eat trash that they think is food.
• Wildlife animals are afraid of trash.

What is a landfill?

• A place for people to recycle
• A place where people's trash is taken
• A place where oil spills begin
• A type of factory

How do landfills effect the environment?

• Landfills cause fish to be poisoned and die.
• Landfills support plant growth and healthy soil.
• Landfills cause smog in the air.
• Landfills cause chemicals from trash to absorb into the soil and harm plants.

How does air pollution affect people?

• It can cause people to have difficulty breathing.

• It can make sick people even sicker.

• Sometimes, air pollution can cause cancer.

• All of the above

To reduce pollution in the environment, people should ______________ materials.

• recycle
• pollute
• throw away
• clean

Which of the following items could you recycle?

• An old newspaper
• A plastic soda bottle that is empty
• An empty cereal box
• All of the above

A disturbance of silent environment with harsh loud noises.

• thermal pollution

• air pollution

• noise pollution

• light pollution