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.

Question 9

Fill in the blanks.
(i) Air around us exerts___
(ii) The moving air is called ___
(iii) The main cause of wind movement is uneven ___ on the earth.
(iv) High speed wind can cause cyclone in regions of ___ pressure

Fill the missing word in the blank spaces in the following statements:

(a) Wind is ________ air.

(b) Winds are generated due to ________ heating on the earth.

(c) Near the earth’s surface __warm__ air rises up whereas _______ air comes down.

(d) Air moves from a region of __________pressure to a region of ________ pressure.

(a) Wind is ________ air.

(b) Winds are generated due to ________ heating on the earth.

(c) Near the earth’s surface ________ air rises up whereas _______air comes down.

(d) Air moves from a region of __________ pressure to a region of ________ pressure.