a. The sun, eight planets, satellites and some other celestial bodies known as asteroids and meteoroids form the solar system.

b. Geoid means an earth-like shape.

c. The small pieces of rocks which move around the sun are called meteoroids.

(i) Tropic of Cancer (23½° N) in the Northern Hemisphere.

(ii) Tropic of Capricorn (23½° S) in the Southern Hemisphere.

(iii) Arctic Circle at 66½° south of the equator.

Select the incorrect.

a. The axis of the earth which is an imaginary line, makes an angle of 66½° with its orbital plane.

b. On 22nd December, the Tropic of Cancer receives direct rays of the sun as the South Pole tilts towards it

c. The sun’s rays fall vertically at the Tropic of Capricorn (23½° S), a larger portion of the Southern Hemisphere gets light.

d. On 21st March and September 23rd, direct rays of the sun fall on the equator

Motion of the earth on its axis in about 24 hours is called

What are celestial bodies?

Why is the shape of the earth geoid?

Why does the moon not have conditions favourable for life?

Consider the following statements:

1. level of the sea is measured as zero.

2. Level of sea water is higher in enclosed seas.

3. Elevation of land is measured from the sea basin.

Select the correct answer using the code given below:

Consider the following statements:

1. Europe is bounded by water on three sides.

2. Arctic circles passes through Europe.

Select the correct answer using the code given below:

Consider the following statements:

1. Africa is the only continent through which Equator, Tropic of Cancer and Tropic of Capricorn

2. Africa is bounded by oceans and seas on three sides.

Select the correct answer using the code given below:

Which of the following comprises hydrosphere?

1. Ice in glaciers.

2. Water vapour in the atmosphere

3. Underground water

4. Water in rivers, lakes and oceans.

1. Less than 3 percent of the earth's water is fresh water.

2. Ice sheets, glaciers and underground water are forms of fresh water.

1. Pacific ocean is the only ocean surrounded by five continents.

2. It is spread over one third of the Earth

3. It is almost circular in shape'

Which of the following continents lie entirely in the Northern Hemisphere?

1. North America

2. Asia

3. Europe

Which of the following are old fold mountains in the world?

1. Aravalis

2. Appalachians

3. Ural Mountains

Through which of the following states Tropic of cancer passes through in India?

1. Chattisgarh

2. Jharkhand

3. West Bengal

4. Manipur

1. Western Ghats are almost continuous.

2. Eastern coastal plains are much broader than Western coastal plains

World's highest peaks are located in?

Which of the following affects climate of a place?

1. Location

2. Altitude

3. Distance from Sea

4. Relief

1. Tropical deciduous forest never shed their leaves.

2. They are found in a large part of the country.

Which of the following trees belong to tropical rain forest?

1. Mahogany

2. Ebony

3. Rosewood