The Four Realms of the Earth

Which of the continent passes through all the important line of latitudes ?

• Asia

• Africa

• Europe

• Australia

__________of the Earth’s water is found in the oceans and is saline.

• 97%

• 2%

• 71%

• 1%

How much water is stored in glaciers ?

• 1 %

• 2 %

• 97 %

• 100%

In which layer of atmosphere does the rocket flies?

• exosphere

• mesosphere

• troposphere

• stratosphere

______ it is also known as the White Continent.

• Asia.

• Europe.

• Antarctica.

• Australia

Which canal is separating Africa from Asia.

• Suez canal

• Panama canal.

• Grand canal

• Erie canal

A narrow zone of the earth where all forms of life exists.

• Biosphere

• Atmosphere

• Hydrosphere

• Lithosphere

The Ural Mountains separate continuous landmass Eurasia formed by continents ......... and .........

• Asia and Australia

• Asia and Africa

• Asia and Europe

• North America and South America

A narrow strip of land that has water on two sides and joins two large areas of land is called ..............

• Isthmus

• Strait

• Biosphere

• Oceans

The atmosphere consists of a mixture of gases. 78% of Nitrogen, ....... of Oxygen.

• 22%

• 23%

• 24%

• 21%