Morning Star solutions for टोटल जियोग्राफी [अंग्रेजी] कक्षा ९ आईसीएसई chapter 15 - Humidity [Latest edition]

Name the heat that is lost during evaporation and passes into water vapour in a hidden form and is released in the atmosphere during condensation.

Which, amongst the following, is NOT one of the factors favouring evaporation?

The ratio between the absolute humidity of a given mass of air and the maximum amount of water vapour that it can hold at the same temperature:

The temperature at which air gets fully saturated:

Assertion (A): Under conditions of high relative humidity, the rate of evaporation of sweat from the skin decreases and the human being feels warm and uncomfortable.

Reason (R): The human body dissipates heat through perspiration and its evaporation.

The measure of the actual amount of water vapour in the air, regardless of temperature:

The process by which products of condensation, viz. water droplets, ice crystals, sleet etc. fall to the ground:

Which of the following type of cloud has a cauliflower-like shape?

Condensation nuclei are ______.

Which of the following is incorrect

In the month of August after many rainy days there was a clear Sunday. We went for a picnic to a park. We felt so hot and uncomfortable that we changed plans and went to watch a movie instead. What caused us this discomfort?

Jyoti and her family had gone to the Little Andaman Island for a holiday. It was a clear day when the sky became dark with clouds and there was heavy rain late in the afternoon. This was the case every day that they spent there. What type of rainfall is this?

What determines the amount of water vapour in the air?

How is relative humidity determined?

Name four chief forms of condensation.

Mention the different forms of precipitation.

Give one difference between fog and mist.

What do you understand by ‘condensation nuclei’?

State the three types of rainfall.

How is the Orographic rainfall caused? 

What is cyclonic rainfall?

What are fronts?

Explain the following term:

Precipitation

Explain the following term:

Evaporation

Explain the following term:

Condensation

Explain the following term:

Humidity

What is humidity?

How is humidity measured?

Differentiate between: Absolute humidity and relative humidity.

Give a geographical reason for the following:

The total volume of water in the oceans and seas remains constant.

Give a geographical reason for the following:

In Equatorial regions the sky often remains overcast with clouds.

Give a geographical reason for the following:

When relative humidity is 100% the temperature reading on both wet and dry thermometers is the same.

Draw a well labelled diagram showing orographic rainfall.

What is condensation?

Explain briefly the process of condensation.

Explain the atmospheric conditions that favour condensation.

Give a geographical reason for the following:

Condensation is the reverse process of evaporation.

Give a geographical reason for the following:

Coasts receive more rainfall than the interior of the continents.

Give a geographical reason for the following:

The windward sides of mountains receive more rainfall than the leeward sides.

Draw a well labelled diagram showing convectional rainfall.

How is dew formed?

Give one difference between fog and mist.

How is the Orographic rainfall caused? 

Explain Convectional Rainfall.

Give a geographical reason for the following:

A rain shadow area is generally dry.

Give a geographical reason for the following:

Frontal rain is common in mid-latitudes.

Convectional rainfall is also called 4'0 clock rain.

Define precipitation reaction.

Explain briefly the three forms of precipitation.

Condensation is regarded as the reverse process of evaporation. Imagine if this reverse process does not happen, what would be its consequences on climate and human beings? Also state the conditions under which this reversal may not happen.

Name two physical objects in your home which are affected by humidity. Also state the reason for such an affect.

List two places which receive two types of rainfall. Give reasons to support your answer.

List the forms of precipitation that occur in your city along with the time of year when they occur.