Environmental Science Worksheet-1

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

3. What causes tides in the oceans?

(a) Excessive rain                        

(b) Large hurricanes

(c) Pull of the Moon's and the Sun's gravity on Earth.

(d) Pull of the Mars's and the Venus's gravity on Earth.

4. What is the source of the most energy we use today?

(a) Nuclear plants                       

(b) Solar energy

(c) Fossil fuels such as coal, oil, or natural gas

(d) Wind energy

5. What is the other name of all non living things in an ecosystem?

(a) Abiotic factors                        (b) Biotic factors

(c) Mechanical factors                (d) Earth’s factors

6. Which of the following is not an abiotic factor?

(a) Water                    (b) Plants           (c) Minerals      (d) Air

7. Who are termed as secondary consumers?

(a) Plants                                        (b) Herbivores

(c) Carnivores                              (d) Decomposers

8. Which of the following is not a producer?

(a) Grass            (b) Algae            (c) Apple tree     (d) Frog

9. Which type of rock is formed under heat and pressure?

(a) Sedimentary                           (b) Metamorphic

(c) Magma                                     (d) Igneous

10. Why does magma rise toward the surface?

(a) Because magma is hotter than the surrounding material.

(b) Because magma is less dense than the water.

(c) Because magma is more dense than the surrounding material.

(d) Because magma is less dense than the surrounding material.

Answer Key:

(1)–(b); (2)–(b); (3)–(c); (4)–(c); (5)–(a); (6)–(b); (7)–(c); (8)–(d); (9)–(b); (10)–(d)