To a perpendicular to the plane of ecliptic, Earth's axis of rotation makes an angle of 23.5 degrees. Had this angle been zero degree, which one among the following would result?

• There would have been no season

• The length of day and night would have been the same throughout the year.

• The length of the day and night would have been the same all over the earth.

• All of the above

'Yakuts' are the nomadic herders of

• Gobi

• Sahara

• Tundra

• Kalahari

The luxuriant growth of natural vegetation in tropical rainforest is due to

1. fertile soil.
2. hot and wet climate throughout the year.
3. intense sunlight for photosynthesis.
4. seasonal change to facilitate nutrient absorption.

Select the correct answer using the code given below:

• 1 and 4 only

• 2 and 3 only

• 1, 2 and 3 only

• I, 2, 3 and 4

Match List-I with List-II

List I (Region)

1. Selvas
2. Savannas
3. Taiga
4. Tundra

List II (Vegetation)

1. Conifers
2. Mosses and Lichens
3. Epiphytes
4. Grasses and trees

• (a) - 4, (b) - 1, (c) - 2, (d) - 3

• (a) - 3, (b) - 2, (c) - 1, (d) - 4

• (a) - 3, (b) - 4, (c) - 1, (d) - 2

• (a) - 4, (b) - 2, (c) - 1, (d) - 3

Which of the following statements with regard to the western coastal plain of India are correct?

1. It is a narrow belt
2. It is an example of submerged coastal plain.
3. It provides natural conditions for development of ports
4. It has well developed deltas.

Select the correct answer using the code given below :

• 1, 2 and 3 only

• 1 and 2 only

• 1, 2, 3 and 4

• 3 and 4 only

Which one of the following weather conditions indicates a sudden fall in barometer reading?

• Stormy weather

• Calm weather

• Cold and dry weather

• Hot and sunny weather

Match List-I with List-II

List I (Island)

1. Continental island
2. Coral island
3. Volcanic island
4. Mountain island

List II (Location)

1. Mauritius
2. Madagascar
3. Andaman and Nicobar islands
4. Maldives

• (a) - 2, (b) - 4, (c) - 1, (d) - 3

• (a) - 2, (b) - 1, (c) - 4, (d) - 3

• (a) - 3, (b) - 1, (c) - 4, (d) - 2

• (a) - 3, (b) - 4, (c) - 1, (d) - 2

Consider the following diagram :

In which one among the following lettered areas of the diagram would erosion most likely change the shapes of the riverbed?

• A

• B

• C

• D

149.

Match List-I with List-II

List I (Cloud)

1. Cirrus
2. Stratus
3. Nimbus
4. Cumulus

List II (Characteristic)

1. Rain giving
2. Feathery appearance
3. Vertically growing
4. Horizontally spreading

• (a) - 3, (b) - 1, (c) - 4, (d) - 2

• (a) - 3, (b) - 4, (c) - 1, (d) - 2

• (a) - 2, (b) - 4, (c) - 1, (d) - 3

• (a) - 2, (b) - 1, (c) - 4, (d) - 3

The Sun is observed to be reddish when it is near the horizon, i.e., in the morning and the evening. This is because

• red light is least scattered by atmosphere

• red light is most scattered by atmosphere

• it is the colour of the Sun in the morning and evening

• Earth's atmosphere emits red light