class3

1. How much portion of earth is covered with land?

• a. 70%

• b. 30%

• c. 50%

Mountains, valleys and plains are the part of

• a. atmosphere

• b. hydrosphere

• c. Lithosphere

Streams, lakes and oceans are the part of

• a. atmosphere

• b. hydrosphere

• c. lithosphere

Which of the following is not the layer of air?

• a. exosphere

• b. stratosphere

• c. lithosphere

In which layer, aeroplane flies

• a. exosphere

• b. stratosphere

• c. lithosphere

The hardest part of earth is called

• a. rock

• b. pebbles

• c. stones

Which is igneous rock?

• a. Sandstone

• b. granite

• c. slate

Which is metamorphic rock

• a. Sandstone

• b. granite

• c. slate

Which is not the sedimentary rock?

• a. Chalk

• b. marble

• c. coal

Soil is formed by the breaking of

• a. rock

• b. trees

• c. ice