Environmental Science

Environmental Science Worksheet-1

1. What is the carbon cycle?

(a) The process by which carbon is consumed by the living things in the ecosystem.

(b) The process by which carbon is recycled between the atmosphere and living things in the ecosystem.

(c) Conversion of Carbon into Carbon Dioxide.

(d) Conversion of Carbon Dioxide into Carbon.

2. Which of the following is not a Carbon product in an ecosystem?

(a) Carbon Dioxide                      (b) Water

(c) Fossil fuel                                 (d) Plant

Environmental Science Worksheet-2

1. What happens when fossil fuels such as coal or oil are burned?

(a) Nitrogen is produced and enters the atmosphere

(b) Oxygen is produced and enters the atmosphere

(c) Carbon Dioxide is produced and released into the atmosphere

(d) Carbon is produced and released into the atmosphere

2. What is photosynthesis?

(a) A process by which plant’s leaves take the carbon from carbon dioxide to make sugar, starch and protein.

(b) A process by which plant leaves take the oxygen from carbon dioxide to make sugar, starch and protein.

(c) Carbon dioxide production by decomposers

Environmental Science Worksheet-3

1. What do animals produce by breathing out in the Carbon Cycle?

(a) Oxygen                                     (b) Carbon Dioxide

(c) Nitrogen                                   (d) Coal

2. What happens to the decaying plants and animals?

(a) It is dissolved into the ocean.       

(b) It evaporates slowly.

(c) It turns into carbon dioxide and fossil fuel.

(d) It turns into carbon dioxide and plastic.