NIOS CLASS -10 SOCIAL SCIENCE CHAPTER - CLIMATE QUESTIONS & ANSWERS

     Q. What are the Jet Streams?

     Ans: A Jet Stream is a fast blowing wind in a narrow zone in the upper atmosphere at the height of about 3 km. It influence the climate of South East Asia.

     Q. Mention any four characteristics of cold weather season.

     Ans: 1. Cold weather season occurs in from December to February.

     2. The temperature decreases during this season.

     3. December and January are the coldest months.

     4. Frost is common on north and north west india.

     5. Some rainfall pours in this region due to the western disturbances.

     Q. List any four main features of hot weather season.

     Ans: 1.       The period of hot weather season is March to May.
2.       Rise in temperature but fall in air pressure is observed in northern part of the country.
3.       Hot wind Loo starts blowing.
4.       Dust storms bring down the temperature temporary.

     Q. What is Kalbaisakhi?

     Ans: Thunderstorms which cause heavy rainfall in West Bengal and Assam in the month of April have the local nomenclature Kalbaisakhi(Calamity of the month of Baisakh).

     Q. What is Loo?

     Ans: Hot and dry winds that blow in summers in the northern and north western plain of India.

     Q. What is October Heat?

     Ans: In northern India, due to high temperature and humidity the weather becomes oppressive in the month of October. This is called October Heat.

     

     Q. Describe the characteristics of Indian Monsoon in short?

     Ans: 1. Sometimes the monsoon come early, normal or late.

     2.The amount of rainfall each year may vary.

     3. Uncertain and variable rainfall.

     4. Monsoons provide climate unity of sub-continent.

     Q. Why does Pune receive less rainfall than Mumbai?

     Ans: Mumbai and Pune receive their rainfall from the south-west monsoon blowing from the Arabian Sea. Mumbai gets heavier rainfall on it lies as the windward side of the Western Ghats. Pune receives less rainfall as it lies on the leeward side of Western Ghats.

     Q. What is El Nino?

     Ans: It is a warm ocean current flown over Peru in an interval of two to five years. It is the term derived from Spanish which means the child i.e., baby Christ. It flows in December month.

     Q. Explain the influence of the Himalayas on India’s climate?

     Ans: The Himalayas provide a shield to the northern frontier of the country. It influences Indian climate in a number of ways.

     1.       The Himalayas have provided India with a compact physical setting.
2.       They act as an effective climate divider.
3.       They protect the subcontinent from the northern cold winds. These cold and chilly winds originate near the Arctic Circle  and blow across Central and Eastern Asia.
4.       The mountain wall blocks the monsoon winds and cause them to shed bulk of their moisture in India.
5.       The mountain wall gives the whole of northern India touch of tropical climate-hot and wet summers and dry winters.