Environmental Studies

Environmental Studies Worksheet-20

1. How much of the earth's surface is covered with land?

A. 2/3                 B. 1/4                  C. 3/4                 D. 1/2

2. Igloos are constructed with ____.

A. Cement, bricks and gravel    B. Baked bricks

C. Mud and straw                        D. Ice

Environmental Studies Worksheet-21

1. All living things live in a _______.

A. Capsule         B. Pond              C. Habitat          D. Place

2. Nomads live in ____.

A. Tents                                         B. Pucca houses

Environmental Studies Worksheet-22

1. An ecosystem consists of ______ things in an area.

A. living and nonliving                B. consumers

C. decomposers                           D. producers and consumers

Environmental Studies Worksheet-23

1. Which of the following is not an ecosystem?

A. Pond              B. Wetland        C. Cabinet         D. River

2. Slant roofs ___.

A. Collect rain water

B. Collect snow

C. Keep the house hot and warm

Environmental Studies Worksheet-24

1. Plants recycle ______ and produce oxygen.

A. Nitrogen                                   B. Carbon dioxide

C. Carbon monoxide                   D. Water