CBSE Questions for Class 9 Geography Climate Quiz 6 - MCQExams.com

The cold weather season in India begins during mid November in Northern India and stays till February. December and January are the coldest months. 

During the cold season, the days are warm and nights are cold. When temperature decreases, frost is commonly experienced in Northern India.

Among the following options Patna, Nagpur and Jaipur experience very extreme summer and winter temperatures. This is because they are far away from the sea and do not experience the moderating effect of the sea.

On the other hand, Kolkata is closer to the Bay of Bengal and experience the lowest annual temperature variation.

• Part of India that experiences the highest diurnal range of temperature is Thar Desert. This is present towards western side of India in the state of Rajasthan. 
  
• The region is filled with sand which gets heated up quickly during day and cooled up very quickly during nights.
  
• There is no sea closer to this area and hence there is no moderating effect.
  

• Snow line can be defined as an altitude above which snow presence is seen throughout the year. Snow is never melted at this range.
  
• At or near the equator, it is typically at approximately 4,500 meters. In Himalayas the permanent snow line can be as high as 5,700 metres. 
  

Summer weather experience rising temperature which leads to falling pressure. This is the reason why winds from Indian Ocean which has high pressure area, blows into Indian subcontinent where the pressure is low.

After retreating of south-west monsoon from India, winter or cold weather season starts. It starts from December and lasts till March. Winds that blow in winter are dry because they do not arise from water bodies and are hence called offshore winds. They start from mainland in the north blow towards low lying areas.

• As many as 64% of people in India are dependent on agriculture and agriculture in turn depends on monsoon. Hence, indirectly economy and lifestyle depends on monsoon.
  
• Monsoon is the axis around which lifestyle revolves. Difference in monsoon climate enables to grow different types of crops. 
  

• All the regional differences in the climate are described as monsoon climate because occurrence of rainfall and other climatic conditions are mostly dependent on the monsoons that arise from the border seas and oceans.
  
• Winds that give maximum rainfall to India are south-west monsoon which lasts from June to September.
  
• Hence, rainy season is also called as south-west monsoon season in India.
  

• Cold weather season is also called as winter. It starts in the month of mid-November in North and ends in February. December and January months are the coldest months.
  
• This season is characterised by cold days and cold nights. North India experience very cold temperatures as there is no sea to provide moderating effect.
  
• Clear sky, low temperatures and low humidity, and feeble and variable winds are the characteristics of this season.
  

• Cold weather season is also called as winter. It starts in the month of November and ends in February. December and January months are the coldest months.
  
• This season is characterised by cold days and cold nights.
  
• Clear sky, low temperatures and low humidity, and feeble and variable winds are the characteristics of this season.
  

The climate and weather conditions in India are governed by: 

• Pressure and surface winds: a low-pressure system draws winds towards it from a region of high pressure resulting in rainfall.
  
• Coriolis force and upper air circulation:  The low-pressure land system attracts southeast trade winds. After crossing equator winds turn right de to Coriolis force and are directed towards the low-pressure areas over the Indian subcontinent. These winds start blowing in a southwesterly direction and enter the Indian peninsula as the southwest monsoon.  
  
• Western cyclonic disturbances: Bring winter rainfall to India.
  

• Annual cycle of seasons is caused due to earth’s tilt. During the revolution, if the northern hemisphere is tilted towards the sun it experiences summer and the other hemisphere experiences winter and vice versa.
  
• In December towards the north of the equator winter season exists, as the southern hemisphere is tilted towards the sun.
  

• Hot weather season is also referred to as summer season that lasts from March to May.
  
• Warm weather season in India is characterized by warm days and warm nights.
  
• In India may is the hottest month. Average temperature in India during this season ranges from 32–40 °C.
  

5 a.m.

The coldest time of day can shift considerably if we have fronts moving through, varying winds and cloud cover or precipitation starting and stopping during the night or morning. However, assuming we have a more tranquil pattern, as we frequently do, with fair skies and light winds late at night and early in the day, the lowest temperature usually occurs a little after sunrise, sometimes as much as a half hour to an hour later.

In Mumbai it rains in the months of June, July, August and September which coincides with the End of Summer.  From July till September the climate is generally wet, hot and humid.

Hence, option A is the correct answer.

During the period of retreating monsoon, i.e. by the end of October south-west monsoon winds retreat from most of northern India. The low-pressure area lying over Northwest India is transferred to the middle of the Bay of Bengal by the end of October. As a result of these unstable conditions, severe cyclonic storms originate in the Bay of Bengal. These cyclonic storms strike along the eastern coast of India causing wide spread rain in the coastal regions.

Hence, option B is the correct answer.