13: Insolation : Icse-ix-geography

Home Learn Fast select Course

Change Unit Change Subject Last Menu

ICSE-IX-Geography

13: Insolation

with Solutions - page 2

Note: Please signup/signin free to get personalized experience.

Note: Please signup/signin free to get personalized experience.

10 minutes can boost your percentage by 10%

Note: Please signup/signin free to get personalized experience.

#
Section : II
Distinguish between each of the following:

Qstn #1
Insolation and Terrestrial Radiation.
Ans :

Qstn #2
Land Breeze and Sea Breeze.
Ans :

Qstn #3
Torrid and Temperate Zones.
Ans :

Qstn #4
Annual Range and Monthly Range of Temperature.
Ans :

#
Section : III
Give reasons for each of the following

Qstn #1
North India has a greater range of temperature than South India.
Ans : North India comes in temperate zone, while South India comes in Torrid Zone situated in the North and South of Tropic of Cancer. So North Indian places have greater range, which is greatest in the Desert of Rajasthan.

Qstn #2
The temperature of Delhi is less than that of Chennai in December.
Ans : Delhi is far from sea, while Chennai is situated along the coast of Bay of Bengal. So Delhi is colder than Chennai in December.

Qstn #3
Distance from the sea affects the temperature of a place.
Ans : Warm effect of sea keeps the temperature less in summer and higher in winter, e.g. Bombay (Mumbai) is warmer than Delhi in winter.

Qstn #4
Land is heated and cooled faster than the sea.
Ans : In the desert of Rajasthan range of temperature is highest due to the physical property of land to be heated and cooled down quickly with respect to the sea. So, the temperature difference is least at Mangalore and Chennai.

Qstn #5
The temperature of a place depends largely upon its latitude.
Ans : As the rays of the sun become more and more slanting with increasing latitudes. So the tropical region never gets snowfall, while the polar region is always frozen.

Qstn #6
Desert areas experience a high day temperature and a much lower night temperature.
Ans : Desert areas are covered with large sand plains. The physical property of the sand is to heated up quickly and cooled down abruptly ; so the day temperature is very high and the night temperature is very less.

#7

#7-i
The ports of the western coast of Europe remain ice- free during winter.
Ans : Due to the warm effect of the Gulf Stream and North Atlantic Drift the ports of Western Europe remain ice free in winter to motivate successful international oceanic trade.
Examples: London, Calais, Lisbon, Amsterdam, Brest, Le Havre etc.

#7-ii
P.Q.
The earth’s surface receives only about 51% of the Solar energy.
Ans : Out of 100 units, only 51 units are received by the earth as isolation, while 35 units are reflected back by atmospheric layers, clouds, snowfields and 14 units are absorbed by ozone layer.