Q1. Fill in the blanks:
1. ________AIR_____________ around us exerts pressure.
2. Difference of temperature between two regions sets _MOVEMENT__ in air.
3. Increased wind speed is accompanied by _LOW___ air pressure.
4. Air moves from the region where the air pressure is _HIGH__ to the region where the pressure is ___LOW____________.
5. Air ___EXPANDS_____on heating and __CONTRACTS___ on cooling.
6. The warm air is _LIGHTER___ than the cold air.
7. Uneven heating on the earth is the main cause of __WIND MOVEMENTS______
8. Winds carrying __WATER______ bring rain.
9. The word monsoon is derived from the Arabic word __MAUSAM___ which means season.
10. The monsoon winds carry __WATER_____ and it rains.
11. Falling water droplets along with rising air create lightning and sound and is known as __THUNDERSTORM_____________
12. High speed winds and air pressure difference can cause __CYCLONES______________________
13. The calm area in the centre of a cyclone is called __EYE OF THE CYCLONE________
14. A cyclone is called a __HURRICANE____ in the American continent and __TYPHOON_____in Japan and Philippines.
Q2. Name the following
1. A dark funnel shaped cloud that reaches from the sky to the ground. TORNADOES
2. The instrument that measures the wind speed ANEMOMETER
3. Two modern technologies that help us to monitor cyclones. SATELLITES AND RADARS
4. The coastline of India that is more vulnerable to cyclones. EAST COAST
Q3 Choose the correct answer:
1. In India, monsoon wind blows in south west direction in (summer/winter). WINTER
2. In winter, the direction of wind is from (land to ocean/ocean to land). LAND TO OCEAN
3. A cyclone watch is issued ( 24/48 ) hours in advance of any expected storm. 24 HRS
4. (Thunderstorms/tornadoes) are frequent in India. THUNDERSTORMS
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