Recording of Weather, Chapter 4, Answer Keys




A. Answer the questions given by choosing the most appropriate alternative.


1. A wind vane is used to find the .________.of wind.

a.. speed

b. direction 

c. height

d. weight

Answer: (b) Direction


2. An_____________.is used to measure the force of wind.

a. barometer

b. anemometer 

c. rain gauge

d. thermometer

Answer: (b) anemometer

3. Lines that join places that have the same __________.are called isohyets.

a. rainfall

b. wind

c. temperature

d. sunshine

Answer: a. rainfall

4. Rain, hail, sleet and snow are all forms of_____________.

a. Weather 

b. precipitation 

c. clouds 

d. maps

Answer: (b) precipitation

5. A.____________ is used for measuring air pressure.

a. barometer 

b. hygrometer 

c. thermometer 

d. anemometer 

Answer: (a) barometer

B. Fill in the blanks.


1. Every day weather elements are continuously recorded at a________ .

Answer: weather stations

2. The scientific study of the elements of weather is called__________ .

Answer: meteorology

3. The amount of cloud cover in the sky is expressed in_____________ .

Answer: oktas

4. The atmospheric pressure is measured in_____________ .

Answer: millibar (mb)

5. The speed of wind is measured on the_____________ .

Answer: Beaufort scale

C. Study the below table and answer the following questions.


1. In which month Delhi experiences the lowest temperature?

Answer: January

2. What is the annual range of temperature of (a) Delhi (b) Mumbai

Answer: (a) Delhi - 19 and (b) Mumbai - 6

3. Calculate the (a) mean annual temperature (b) mean annual rainfall of all cities.

Answer: 

4. What differences do you observe in the rainfall distribution between Kolkata and Chennai?

Answer: 

D. Answer the questions in about 20-30 words.

1. Define weather. What are the different elements of weather? (Click here for Answer)

2. What is the purpose of recording different elements of weather? (Click here for Answer)

3. Define air pressure. Explain the movement of winds. (Click here for Answer)

4. How are winds classified according to the Beaufort scale? (Click here for Answer)

5. How are clouds formed? (Click here for Answer)

E. Answer the questions in about 50-60 words.

1. How are weather and climate different from each other?

2. How does weather affect our lives?

3. What is a barometer? How do we measure air pressure with its help?

4. What are the various types of clouds? Explain.

5. What are weather maps? How are they useful to us?