Write True (T) or False (F) against the following statements in the given brackets:
1. An anemometer measures the speed of sound. ( )
2. Cold air goes up but hot air goes down. ( )
3. Hurricane are wind currents. ( )
4. The centre of a cyclone is called the eye. ( )
5. The rotation of the earth affects the direction of winds. ( )
6. Convection current is the movement of hot and cold air. ( )

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Solution

1. False (F)
An anemometer measures the speed of the wind.

2. False (F)
Hot air goes up and cold air comes down.

3. False(F)
Hurricanes are huge revolving storms caused by winds blowing round the central area of low atmospheric pressure.

4. True (T)

5. True (T)

6. True (T)

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Similar questions

Fill in the blanks:
1. ................................. is a device to measure wind speed.
2. Envelop of air surrounding the earth surface ................................. .
3. Air ................................. on heating.
4. An alternative movement of hot and cold air is called ................................. current.
5. Air moves from a region of ................................. pressure to a region of ................................. pressure.
6. A cyclone is also called ................................. .
7. A hazard causing destruction is also called a ................................. .
8. ................................. are warm moist wind blowing from the sea to the land.

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Plants need oxygen to prepare food during photosynthesis. ( )
2. Aquatic animals use dissolved oxygen from water. ( )
3. Moving air is called wind. ( )
4. Soil does not contain air. ( )
5. Atmosphere is essential for sustaining life on earth. ( )

An anemometer is usually used to measure
(a) speed of wind
(b) direction of wind
(c) humidity in the air
(d) none of these

Q. Which of the following statements are correct regarding warm and cold air?
1. Warm air is lighter than cold air.
2. Warm air rises up.
3. Cold air sinks down.
4. Cold air is lighter than warm air.

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Respiration is faster than combustion. ( )
2. Larynx produces sound. ( )
3. Exhaled air contains more oxygen than inhaled air. ( )
4. Exchange of gases takes place in the alveoli of lungs. ( )
5. Earthworms respire through moist skin. ( )

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1. False (F) An anemometer measures the speed of the wind. 2. False (F) Hot air goes up and cold air comes down. 3. False(F) Hurricanes are huge revolving storms caused by winds blowing round the central area of low atmospheric pressure. 4. True (T) 5. True (T) 6. True (T)

1. False (F)
An anemometer measures the speed of the wind.

2. False (F)
Hot air goes up and cold air comes down.

3. False(F)
Hurricanes are huge revolving storms caused by winds blowing round the central area of low atmospheric pressure.

4. True (T)

5. True (T)

6. True (T)