Understanding the Weather Class 7 MCQ Questions SST Chapter 2

Students often review Class 7 SST MCQ and Class 7 Social Science Chapter 2 Understanding the Weather MCQ Questions Online Test with Answers for quick revisions before tests.

Class 7 Understanding the Weather MCQ with Answers

MCQ on Understanding the Weather Class 7

Class 7 SST Chapter 2 Understanding the Weather MCQ Questions with Answers

Multiple Choice Questions

Question 1.
What is the lowest layer of the atmosphere where weather takes place?
(a) Stratosphere
(b) Troposphere
(c) Mesosphere
(d) Thermosphere
Answer:
(b) Troposphere

Question 2.
Which instrument is used to measure temperature?
(a) Barometer
(b) Rain gauge
(c) Thermometer
(d) Anemometer
Answer:
(c) Thermometer

Question 3.
What does a rain gauge measure?
(a) Wind speed
(b) Temperature
(c) Air pressure
(d) Rainfall
Answer:
(d) Rainfall

Question 4.
What is the movement of air from high pressure to low pressure called?
(a) Rain
(b) Wind
(c) Storm
(d) Snow
Answer:
(b) Wind

Question 5.
Which instrument measures wind speed?
(a) Wind vane
(b) Thermometer
(c) Anemometer
(d) Barometer
Answer:
(c) Anemometer

Question 6.
What is humidity?
(a) Movement of wind
(b) Bright sunlight
(c) Water vapour in the air
(d) Snowfall
Answer:
(c) Water vapour in the air

Question 7.
Which unit is used to measure atmospheric pressure?
(a) Celsius
(b) Kilometers
(c) Millibar
(d) Litres
Answer:
(c) Millibar

Question 8.
What happens when air pressure drops below 1000 mb?
(a) Snowstorm
(b) Rain
(c) Depression or storm
(d) Sunshine
Answer:
(c) Depression or storm

Question 9.
What is the motto of the Indian Meteorological Department?
(a) Weather is power
(b) Rain is life
(c) Adityat Jayate Vrishti
(d) Watch the sky
Answer:
(c) Adityat Jayate Vrishti

Question 10.
Which instrument shows the direction of the wind?
(a) Rain gauge
(b) Wind vane
(c) Thermometer
(d) Hygrometer
Answer:
(b) Wind vane

Fill in the blanks

1. The ______ is the lowest layer of the atmosphere where weather occurs.
Answer:
troposphere

2. A ______ is used to measure temperature.
Answer:
thermometer

3. The amount of water vapour in the air is called ______.
Answer:
humidity

4. A ______ measures the speed of wind.
Answer:
anemometer

5. A rain gauge measures the amount of ______.
Answer:
rainfall

6. ______ is the movement of air from high- pressure to low-pressure areas.
Answer:
Wind

7. Atmospheric pressure is measured using a ______.
Answer:
barometer

8. The unit used to measure atmospheric pressure is ______.
Answer:
millibar

9. The Indian Meteorological Department was set up in the year ______.
Answer:
1875

10. The motto of the Indian Meteorological Department is “Adityat Jayate” ______.
Answer:
Vrishti

True or False

1. The troposphere is the highest layer of the atmosphere.
Answer:
False

2. A barometer is used to measure air pressure.
Answer:
True

3. Rain, snow, and hail are all forms of precipitation.
Answer:
True

4. On a humid day, clothes dry very quickly.
Answer:
False

5. Wind moves from low pressure to high pressure areas.
Answer:
False

6. Hygrometer is used to measure humidity.
Answer:
True

7. The Indian Meteorological Department was set up in 2000.
Answer:
False

8. An anemometer helps measure the direction of wind.
Answer:
False

9. Automated Weather Stations (AWS) can work without people.
Answer:
True

10. Pine cones close in dry weather and open when it rains.
Answer:
False

Match the following

Question 1.
Match the instrument to its use. Instruments Uses

Answer:

Question 2.
Match the weather element to its description. Weather Element Description

Answer:

Assertion-Reason Type Questions

There are two statements in each question marked as Assertion (A) and Reason (R). Choose your answer as per the options given below:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
(b) Both (A) and (R) are true but (R) is not the correct explanation of (A).
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.

1. Assertion (A): The troposphere is the layer where weather occurs.
Reason (R): The troposphere is the lowest layer of the atmosphere.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).

2. Assertion (A): A barometer measures atmospheric pressure.
Reason (R): Atmospheric pressure is the weight of the air above us.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).

3. Assertion (A): Wet clothes dry faster in high humidity.
Reason (R): High humidity means the air is already saturated with moisture.
Answer:
(d) (A) is false but (R) is true.

4. Assertion (A): Anemometers measure wind direction.
Reason (R): Wind direction is indicated by a wind vane.
Answer:
(d) (A) is false but (R) is true.

5. Assertion (A): Acclimatisation is important for high-altitude travel.
Reason (R): The body needs time to adapt to lower oxygen levels.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).

6. Assertion (A): Pine cones open in dry conditions.
Reason (R): Pine cones close to protect their seeds from rain.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).

7. Assertion (A): The Indian Meteorological Department was established in 1875.
Reason (R): Its motto is “From the sun arises the rain.”
Answer:

8. Assertion (A): High humidity makes the air feel uncomfortable.
Reason (R): Sweat evaporates quickly in high humidity.
Answer:
(c) (A) is true but (R) is false.

9. Assertion (A): Automated Weather Stations (AWS) require human intervention.
Reason (R): AWS measures and records weather data automatically.
Answer:
(d) (A) is false but (R) is true.

10. Assertion (A): On humid days, our clothes take longer to dry.
Reason (R): Humid air contains more water vapour, which slows down the evaporation process.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).

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