Assertion (A) : Carbon dioxide is an important greenhouse gas.
Reason (R) : The human-caused increase in its concentration in the atmosphere has strengthened the greenhouse effect and has definitely contributed to global warming over the last 100 years.

How do the central Asian highlands effect the Indian climate ?
(a) The low pressure is there areas intensifies the cold during the winter
(b) The atomspheric pressure is this region has an effect on the Indian atmosphere in summer
(c) Dry continental air is flowing towards india throughout
(d) THe atmospheric pressure in this region has an impact on the onset of mansoon in India.
1. An unsaturated air mass cools at dry adiabatic lapse rate when it rise in the atmosphere.
2. The dry adiabatic lapse rate amounts to 1^° C per 100 meters.
3. The wet adiabatic lapse rate may very between 0.4^° C and 0.9^° C per 100 meters.
4. Dry adiabatic lapse rate is higher because of the release of latent heat of condensation.
Which of the above statements are correct ?

Consider the following statements
1. In the high latitudes, east-coast regions are warmer than west-coasts.
2. Precipitation is abundant on the windward slopes but sparse on the leeward slopes.
3. In the subtropics, west-coasts are wetter than the east-coasts.
4. Precipitation is abundant in the middle latitudes.
Which of the above statements is / are correct ?