ข้อสอบกลางภาค

What do trees give us to breathe?

• Water

• Oxygen

• Soil

• Smoke

What do we need to save to protect animals?

• Habitats

• Cars

• Plastic

• Rocks

Which of these is good for the environment?

• Recycling

• Burning trash

• Cutting trees

• Using plastic bags

What covers most of the Earth’s surface?

• Water

• Sand

• Forests

• Mountains

Which one is a clean energy source?

• Solar power

• Coal

• Oil

• Gas

The Earth is our __. We must protect it.

We should not _ water. It is very important.

Pollution makes the air __.

If we plant more trees, the air will be __.

Animals will be safe if we _ their habitats.