5th Class General Science Chapter 8 TestStructure of the Earth

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. The amount of fresh water on the earth is:

   1. About 1%

   2. About 30%

   3. About 70%

   4. About 97%

2. The temperature of core is:

   1. 500⁰C

   2. 5000⁰C

   3. 6000⁰C

   4. 10000⁰C

3. In which planet of solar system life is possible?

   1. Earth

   2. Mars

   3. Juipter

   4. Uranus

4. What is the role of living organisms in the soil?

   1. Making soil soft and airy

   2. Making soil hard

   3. Making soil unfit for cultivation

   4. Making the air dry

5. What are the main types of soil?

   1. Silt, sand and rock

   2. Clay, humus and sand

   3. Sand, silt and clay

   4. Silt, humus and clay

6. The types of soil depends upon:

   1. Moisture

   2. Colour

   3. Structure

   4. All of these

7. Which type of soil is good for growth of plants?

   1. Sand

   2. Silt

   3. Clay

   4. Rock

8. The diameter of earth is:

   1. 100,000 kilometer

   2. 12,800 kilometer

   3. 15,000 kilometer

   4. 20,000 kilometer

9. The lower layer of crust is called:

   1. Crust

   2. Mantle

   3. Core

   4. External core

10. During volcanic eruption lava is released form:

    1. Crust

    2. Mantle

    3. Core

    4. Humus