Question

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.

Answer 1

1. Anemometer is a device to measure wind speed.
2. The envelop of air surrounding the earth's surface is called atmosphere.
3. Air expands on heating.
4. An alternative movement of hot and cold air is called convection current.
5. Air moves from a region of high pressure to a region of low pressure.
6. A cyclone is also called hurricane.
7. A hazard causing destruction is also called a natural disaster.
8. Summer monsoon winds are warm moist winds blowing from the sea to the land.