Ch.3. The Earth & its Living World Quiz (Grade 5)

The earth’s crust is mainly made up of …………….. .

• soil

• rock

• animals

The earth’s crust and a small hard portion of the layer under it is called the ………………. .

• hydrosphere

• atmosphere

• lithosphere

About ……………….. of the earth’s surface is covered by land while about ………………… is covered with water.

• one third

• one fourth, two third

• three fourth

The envelope of air around the earth is called the ……………… .

• lithosphere

• atmosphere

• biosphere

There are huge blocks of ice floating in the sea called ……………….. .

• glacier

• block-ice

• iceberg

The earth is surrounded by the …………………. .

• atmosphere

• lithosphere

• hydrosphere

Total number of oceans on the earth .

• 2

• 5

• 7

Largest continent in the world.

• Australia

• Africa

• Asia