The biosphere

Question 1

The study of living organisms, their relationship to one another and their relationship to the environment that they live in.

Answer 1

Ecology

Question 2

The part of the Earth where humans and other organisms are able to exist.

Answer 2

Biosphere

Question 3

The part of the biosphere that consists of water and is the habitat of many aquatic organisms such as fish.

Answer 3

Hydrosphere

Question 4

The part of the biosphere that consists of rocks and soil and is a source of ions which living organisms need.

Answer 4

Lithosphere

Question 5

The part of the biosphere that is made up of gases that keep the environment stable and filters the sunlight to protect organisms from harmful or strong sun rays.

Answer 5

Atmosphere

Question 6

Communities of plants and animals interacting with each other and with their non- living environment.

Answer 6

Ecosystem

Question 7

A word relating to the air or gases surrounding the earth.

Answer 7

-sphere

Question 8

The interruption of a settled and peaceful condition.

Answer 8

Disturbance

Question 9

The action of clearing a wide area of trees.

Answer 9

Deforestation

Question 10

The displacement of the upper layer of soil; it is a form of soil degradation and this natural process is caused by the dynamic activity of erosive agents such as wind and water.

Answer 10

Soil erosion

Question 11

Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. It is often referred to by its formula CO2. It is present in the Earth’s atmosphere at a low concentration and acts as a greenhouse gas. In its solid state, it is called dry ice.

Answer 11

Carbon Dioxide