Morning Star solutions for Total Geography [English] Class 9 ICSE chapter 13 - Insolation [Latest edition]

The sun continuously radiates heat and light energy in all the directions known as ______.

Assertion (A): Heat absorption capacity of air is more in the lower layers than in upper layers.

Reason (R): Air on the surface of the earth is denser and contains more carbon dioxide, water vapour and other gases.

The solar energy received by the earth is called ______.

The heat radiated by the earth in the form of long waves is called ______.

When both incoming radiation and outgoing radiation are balanced, it is called ______.

Of the insolation, 35% is reflected by the atmosphere; how much reaches the earth's surface?

Conduction : ______ : : Convection : ______.

The atmosphere is warmed by A% of insolation and B% of terrestrial radiation regulating earth’s temperature preventing extremes of temperature.

The height of a place above the mean sea level ______.

Land : ______ : : Water : ______.

Sea breeze : daytime : : land breeze : ______.

The increase in temperature in valleys:

What is solar radiation?

What is the significance of solar radiation for the earth?

What is meant by insolation?

State two main characteristics of insolation.

State two advantages of convectional heating of the atmosphere.

Name four factors that affect the temperature of a place.

State the pattern of temperature in mid latitudes.

What difference is there in the temperatures on a mountain and on a seashore?

Why is India cooler in December than in July?

Distinguish between the following:

Insolation and Terrestrial Radiation.

Distinguish between Land breeze and sea breeze.

How is ‘heat balance’ achieved?

State how latitude affects the temperature of a place.

Give reason for the following:

North India has a greater range of temperature than South India.

Give reason for the following:

The temperature of Delhi is less than that of Chennai in December.

Give reasons for the following:

Desert areas experience a high day temperature and a much lower night temperature.

Draw a labelled diagram showing the heat budget of the earth.

State the five temperature zones of the earth.

Explain the Normal Lapse Rate.

Give reasons for the following:

Distance from the sea affects the temperature of a place.

Give reasons for the following:

Land is heated and cooled faster than the sea.

Give reasons for the following:

The ports of the western coast of Europe remain ice-free during winter.

Draw a well labelled diagram showing that the vertical rays are hotter than slanting rays.

How does the distance from the sea affect the distribution of temperature?

How would the breezes that blow during the day and those that blow during the night affect the temperature of a place situated in the coastal region?

Give a reason for the following:

Higher the latitude, lower is the temperature.

Give reason for the following:

The vertical rays of the sun give more insolation than the slanting rays.

Give reason for the following:

A desert region has a high range of temperature than a forest region.

Draw a well labelled diagram to show the land and sea breeze.

Solar radiation is the only primary source of light and heat on the earth. But only 51% of solar energy reaches the earth. What would happen if the entire solar energy reaches the earth? Give reasons to support your answer.

Do you think Greenhouse Gases affect earth's heat budget? Give examples to support your answer.