1.
Option A
2.
Towards the close of the summer season, pre-monsoon showers are common especially, in Kerala and Karnataka. They help in the early ripening of mangoes, and are therefore referred to as 'mango showers'.
3.
Monsoon refers to the seasonal reversal in the wind direction during a year.
4.
Option A
5.
The western cyclonic disturbances are weather phenomena of the winter months brought in by the westerly flow from the Mediterranean region. They influence the weather of the north and north-western regions of India.
6.
they merge over the northwestern part of the Ganga plains
7.
Option B
8.
Option A
9.
Option A
10.
Normally when the tropical eastern South Pacific Ocean experiences high pressure, the tropical eastern Indian Ocean experiences low pressure. But in certain years, there is a reversal in the pressure conditions and the eastern Pacific has lower pressure in comparison to the eastern Indian Ocean. this periodic change in pressure conditions is known as the Southern Oscillation.
11.
In summer, the mercury occasionally touches 50'C in some parts of the Rajasthan desert, whereas it may be around 20'C in Pahalgam in Jammu and Kashmir. On a winter night, the temperature at Drass in Jammu and Kashmir may be as low as -45'C. Thiruvananthapuram, on the other hand, may have a temperature of 22'C.
12.
Because on Tamil Nadu coast they blow from sea to land.
13.
Option B
14.
October and November
15.
1. the differential heating and cooling of land and water 2. the shift of the position of Inter-Tropical convergence zone in summer over the Ganga plain 3. the presence of the high-pressure area, east of Madagascar 4. The intensely heated Tibetan plateau 5. the movement of the westerly jet stream to the north of the Himalayas and the presence of the tropical easterly jet stream over the Indian peninsula during summer
16.
Option B
17.
Option A
18.
due to the apparent northward movement of the sun, the global heat Belt shifts northward. Therefore from March to may, it is hot weather season in India.
19.
400.0
20.
Option A
