{"id":18017,"date":"2021-02-05T14:45:39","date_gmt":"2021-02-05T09:15:39","guid":{"rendered":"https:\/\/ncertsolutions.guru\/?p=18017"},"modified":"2021-02-05T14:45:39","modified_gmt":"2021-02-05T09:15:39","slug":"ncert-solutions-for-class-11-geography-chapter-4-part-b","status":"publish","type":"post","link":"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-11-geography-chapter-4-part-b\/","title":{"rendered":"NCERT Solutions for Class 11 Geography Chapter 4 Climate"},"content":{"rendered":"

Detailed, Step-by-Step NCERT Solutions for Class 11 Geography<\/a> Chapter 4 Climate Questions and Answers were solved by Expert Teachers as per NCERT (CBSE) Book guidelines covering each topic in chapter to ensure complete preparation.<\/p>\n

Climate NCERT Solutions for Class 11 Geography Chapter 4<\/h2>\n

Climate Questions and Answers <\/span>Class 11 Geography Chapter 4<\/h3>\n

Question 1.
\nChoose the right answer from the four alternatives given below :
\n(i) What causes rainfall on the coastal areas of Tamil Nadu in the beginning of winters?
\n(a) South-west monsoon
\n(b) North-eastern monsoon
\n(c) Western disturbances
\n(d) Local factors
\nAnswer:
\n(b) North-eastern monsoon<\/p>\n

\"NCERT<\/p>\n

(ii) What is the proportion of area of India which receives annual rainfall less than 75 cm?
\n(a) Half
\n(b) Two third
\n(c) One-third
\n(d) Three-fourth
\nAnswer:
\n(d) Three-fourth<\/p>\n

(iii) Which one of the following is not a fact regarding South India?
\n(a) Diurnal range of temperature is less here.
\n(b) Annual range of temperature is less here.
\n(c) Temperatures here are high throughout the year.
\n(d) Extreme climatic conditions are found here.
\nAnswer:
\n(d) Extreme climate conditions are found here.<\/p>\n

(iv) Which one of the following phenomenon happens when the sun shines vertically over the Tropic of Capricorn in the southern hemisphere?
\n(a) High pressure develops over North-western India due to low temperatures.
\n(b) Low pressure develops over North-western India due to high temperatures.
\n(c) No changes in temperature and pressure occur in north-western India.
\n(d) \u2018Loo\u2019 blows in the north-western India.
\nAnswer:
\n(b) Low pressure develops over North-western India due to high temperature.<\/p>\n

\"NCERT<\/p>\n

(v) In which of the following states in India do we find \u2018As\u2019 type of climate as per Koeppen\u2019s classification?
\n(a) In Kerala and coastal Karnataka
\n(b) In Andaman and Nicobar Islands
\n(c) On Coromandal coast
\n(d) In Assam and Arunachal Pradesh
\nAnswer:
\n(c) On Coromandal coast<\/p>\n

Question 2.
\nAnswer the following questions in about 30 words.<\/p>\n

(i) What are the three important factors which influence the mechanism of Indian weather?
\nAnswer:
\nTemperature, pressure and air.<\/p>\n

(ii) What is the Inter-Tropical Convergene Zone?
\nAnswer:
\nThe westerly jet stream withdraws from the Indian region. ITCZ is a zone of low pressure, inviting inflow of winds from different directions.<\/p>\n

(iii) What is meant by \u2018bursting of monsoon\u2019? Name the place of India which gets highest rainfall.
\nAnswer:
\nThe first rain of the monsoon brings down the temperature substantially. This sudden onset of the moisture-laden winds associated with violent thunder and lightening, is often termed as the \u2018break\u2019 or \u2018burst\u2019 of monsoon.<\/p>\n

\"NCERT<\/p>\n

(iv) Define climatic region. What are the basis of Koeppen\u2019s classification?
\nAnswer:
\nKoeppen\u2019s classification is based on monthly values of temperature and precipitation.<\/p>\n

(v) Which type(s) of cyclones cause rainfall in north-western India during winter? Where do they originate?
\nAnswer:
\nIn north-western India, some weak temperate cyclones, after getting humidity from the Mediterranean sea cause rainfall in Punjab, Haryana, Delhi and western Uttar Pradesh. It is highly beneficial forrabi crops, especially for wheat.<\/p>\n

Question 3.
\nAnswer the following questions in not more than 125 words :
\n(i) Notwithstanding the broad climatic unity, the climate of India has many regional variations. Elaborate this statement giving suitable example.
\nAnswer:
\nThe monsoon regime emphasises the unity of India with rest of the south-east Asian region. This view of broad unity of the monsoon type of climate should not lead to ignoring the regional variations in climate which differentiate the weather and climate of different regions of India. For example, the climate of Kerala and Tamil Nadu in the south is so different from that of Uttar Pradesh and Bihar in the north, and yet all of these have a monsoon type of climate.<\/p>\n

The climate of India has many regional variations expressed in the pattern of winds, temperature and rainfall, rhythm of seasons and the degree of wetness or dryness. These regional variations may be described as sub-types of monsoon climate.<\/p>\n

In summer the mercury occasionally touches 55\u00b0C in the western deserts, it drops down to as low as minus 45\u00b0C in winter around Leh.<\/p>\n

\"NCERT<\/p>\n

Churu in Rajasthan may record a temperature of 50\u00b0C or more in June while 19\u00b0C in Tawang (Arunacha! Pradesh) in the same month. On a December night, the temperature in Drass (Jammu and Kashmir) may drop down to minus 45\u00b0C while Thiruvananthapuram or Chennai on the same night records 20\u00b0C or 22\u00b0C.<\/p>\n

The above examples confirm that there are seasonal variations in temperature from place to place and from region to region in India. If we take a single place and confirm to temperature recording for just 24 hours, variations are not less striking. In Kerala and in the Andaman Islands, the difference between day and night temperature may be hardly 7\u00b0C or 8\u00b0C. But in Thar desert, if the day temperature is around 50\u00b0C, at night it may drop up to 15\u00b0C to 20\u00b0C.<\/p>\n

Let us see the regional variations in precipitation. While snowfall occurs in the Himalaya, it only rains over the rest of the country. Tura situated in the Garo hills of Meghalaya may get an amount of rainfall in single day which is equal to 10 years of rainfall at Jaisalmar. Most parts of the country get rainfal 1 during June-September but on the coastal area of Tamil Nadu, it rains in the beginning of winter season.Inspite of these differences and variations, the climate of India is monsoonal in rhythm and character.<\/p>\n

(ii) How many distinct seasons are found in India as per the Indian Meteorological Departmen t? Discuss the weather conditions associated with any one season in detail.
\nAnswer:
\nThe meteorologists usually fecognisethe followingfour seasons :
\n(a) The cold weather season,
\n(b) The hot weather season,
\n(c) The south-west monsoon season; and
\n(d) The retreating monsoon season.<\/p>\n

The cold weather season :
\nTemperature – The cold-w eather season usually begins in the mid of November in northern India. January and February’ are the coldest months. The mean daily temperature remains below 21\u00b0C over most parts of the northern India. The night temperature may be quite low, often drops to freezing point. There are three main reasons which are responsible for this :<\/p>\n