Land, water, air and plant are --------- environments.

• natural

• human

Human environment means the environment that made or changed by ----------.

• animals

• plants

• people

• aliens

------------- is in the air that living things breathe out.

• Oxygen

• Carbon dioxide

• Hydrogen

• Nitrogen

Animals and plants can make their own food.

• True

• False

The Earth formed about 4570 million years ago.

• True

• False

A village covers a much larger area of land than a town or city.

• True

• False

At the very edges of a large city there may be ---------.

• a school

• a church

• an airport

• a skyscraper

The first people appeared on the Earth is in ---------.

• America

• Asia

• Australia

• Africa

People harm our environment with noise and litter.

• True

• False

The places which are a long way north or south of the Equator have the four different seasons.

• True

• False