F. Answer the following:
1. Why are the monsoons called 'irregular?
2. Mention two reasons to explain why the Himalayas are called a climatic divide. 3. Which type of vegetation is most common in India? Give four examples
4. Describe the natural vegetation of arid regions.
Answers
Explanation:
1. Monsoons are pulsating in nature. They are irregular due to many reasons but the main reason is change in the pressure and temperature over oceans and land. ... The advancing monsoons started early June to September. The direction of the wind is north east in winter and south west in summer.
2. The Himalayas act as a perfect climatic divide in the following ways: ... The Himalayas act as a barrier to cold winds that blow from central Asia and thus prevent the Northern Plains from becoming freezing cold. The Himalayas act as a barrier to moisture laden South West monsoon winds.
3. The most common vegetation in India is tropical deciduous forests found in areas receiving rainfall of 200-70cm. The three important trees found are teak , sal, peepal.
4. In arid zones, vegetation is typically sparse, and is comprised of perennial and annual grasses, other herbaceous plants, shrubs and small trees. The native plant species have adaptations that enable them to reproduce, grow and survive in the most inhospitable edaphoclimatic conditions.