CLIMATE
20 Define et stream."
11. What are western disturbances? Over which area they blow?
12 How does the northern wall of the Himalayas affect the climate of India?
13. How does monsoons control the climate of India?
14. Give a few examples of diversity in temperature conditions in India.
15. State tvo effects of adjoining water bodies on the climate of India.
16. What is the impact of monsoon on the people of India?
17. Why does India have a tropical monsoon climate?
18. Name the months of the different seasons.
19. Which regions receive more than 200 cm of rain? Why?
20. Mangalore and Chennai lie approximately in the same latitude. Yet Mangalore receives its annual rainfall
from June to September while Chennai gets most of its rain in November-December. What are the reasons
for this difference?
OR
Explain why Mangalore/Mumbai has four months of rainfall yet receives 200 cm, while Chennai/Visakhapatnam
has eight months of rainfall, yet receives only 100 cm.
21. (a) Which states receive rain in January-February?
(b) What causes this winter rain?
How does this winter rain benefit agriculture in the area?
om whereas Western Rajasthan is relatively dry and
Answers
Answer:
➡20) Define Jet Streams?
✔Jet streams are fast flowing, narrow, meandering air currents in the atmospheres of some planets, including Earth. On Earth, the main jet streams are located near the altitude of the tropopause and are westerly winds. Their paths typically have a meandering shape.
➡ 11) What are western disturbances? Over which area they blow?
✔ A western disturbance is an extratropical storm originating in the Mediterranean region that brings sudden winter rain to the northwestern parts of the Indian subcontinent. The moisture in these storms usually originates over the Mediterranean Sea, the Caspian Sea and the Black Sea.
➡From Punjab and Haryana they blow.
➡ 12) How does the northern wall of the Himalayas affect the climate of India?
✔ The northern wall of Himalaya act like as a natural barrier and it also protect from the cold winds coming from Cyberia.
➡ 13) How does monsoons control the climate of India?
✔ Monsoons dominate India's climate. Monsoons are strong, often violent winds that change direction with the season. Monsoon winds blow from cold to warm regions because cold air takes up more space than warm air. So, monsoons blow from the land toward the sea in winter and from the sea toward land in the summer.
➡ 14) Give a few examples of diversity in temperature conditions in India?
✔ Some examples of diversity in temperature conditions in India are: While Barmer in Rajasthan experiences the temperature of 480C to 500C in June, Pahalgam in Kashmir experiences 220C in the same month. In Thar Desert the diurnal range of temperature is extremely high.
➡ 15. State two effects of adjoining water bodies on the climate of India?
✔ Large bodies of water, such as oceans, seas and large lakes, can affect the climate of an area. Water heats and cools more slowly than landmass. Therefore, the coastal regions will stay cooler in summer and warmer in winter, thus creating a more moderate climate with a narrower temperature range.
➡ 16) What is the impact of monsoon on the people of India?
✔ Farmers in monsoon regions rely on the wet summer months to grow crops. However the summer monsoon does not always bring the same amount of rainfall, and variations in rain have implications for agriculture and the economy.
➡ 17) Why does India have a tropical monsoon climate?
✔ India has a tropical monsoon climate because most of India lies in the tropical belt and her climate is influenced by the Monsoon winds which mainly blow in the tropics ie. High temperatures during summers and dry winters are some of the characteristics of the Monsoon types of climate.
➡ 18) Name the months of the different seasons?
✔ The seasons are defined as spring (March, April, May), summer (June, July, August), autumn (September, October, November) and winter (December, January, February).
➡ 19) Which regions receive more than 200 cm of rain? Why?
✔ The highest rainfall occurs along the Western Coastal plain, extending from Mumbai to Thiruvananthapuram, the western slopes of the Western Ghats, the southern slopes of the Eastern Himalayas, the sub-Himalayan areas in the northeast, the hills of Meghalaya.
➡ 20. Mangalore and Chennai lie approximately in the same latitude. Yet Mangalore receives its annual rainfall from June to September while Chennai gets most of its rain in November-December. What are the reasons for this difference?
✔ Since Mangalore is situated on the west coast, it receives the South-west monsoon in June but Chennai is situated on the east coast so it receives rain from the retreating monsoon in November and December.
Explanation: