How much do you know about the environment?

What do you call the area that is inhabited by a particular species?

• habitat

• environment

• biosphere

What do you call the processing of used materials and their reuse?

• recycling

• reusing

• reprocessing

Which layer protects the Earth from UV rays?

• oxygen

• nitrogen

• ozone

The process by which the Earth's temperature is increasing is called the...

• biothermal effect

• greenhouse effect

• temperature effect

Which of the following is biodegradable?

• plastic

• paper

• glass

What is the term for the complete disappearance of a species?

• termination

• disappearance

• extinction

What do you call renewable safe sources of energy?

• alternative energies

• bio-energies

• solar energies

Which of these energy sources is renewable?

• coal

• natural gas

• wind

What do you call the rain that contains many chemicals and is harmful?

• smog

• acid rain

• monsoon

What do you call a substance that pollutes the air, water or soil?

• pollutant

• pesticides

• acid