Q.1: The moving air is called ___________.
Q.2: Orissa was hit by a cyclone with wind speed of 200 km/hr on ______________.
Ans: 18 October 1999
Q.3: Air exerts ____________.
Q.4: Increased wind speed is accompanied by a _________ air pressure.
Q.5: Air moves from the region of _________ air pressure to the region of ________ air pressure.
Ans: high, low
Q.6: On heating, the air ________ and occupies _______ space.
Ans: expands, more
Q.7: The regions close to the __________ get maximum heat from the Sun.
Q.8: When the warm air of equator region rises, then the cooler air of regions in the ________ degrees latitude belt on either side of the equator moves in.
Q.9: Most of the times, the temperature of land is ________ than that of water in the ocean.
Q.10: The word monsoon is derived from the Arabic word ‘__________’.
Q.11: The centre of a cyclone is known as ________ of the storm.
Q.12: The swift movement of the falling water droplets along with the rising air create lightning and sound is known as _____________.
Q.13: The diameter of the eye of storm varies from _____ to ______ km.
Ans: 10, 30
Q.14: Thunderstorms develop in ________ areas.
Ans: hot, humid tropical
Q.15: Around the eye of the storm, there is a cloud region of about ______ km in size.
Q.16: ________ region of the storm is free of clouds and has light winds.
Q.17: Factors like ___________, ____________, __________ and ___________ contribute to the development of cyclones.
Ans: wind speed, wind direction, humidity, temperature
Q.18: Cyclone is called a ___________ in America.
Q.19: Cyclone is known as _________ in Japan & Philippines.
Q.20: A ___________ is a dark funnel shaped cloud that reaches from the sky to the ground.
Q.21: A violent tornado can travel at speed of about ________ km/hr.
Q.22: The _________ of tornado sucks dust, debris and everything near it at the base and throws them out near the top.
Q.23: The coastline of ________ India is vulnerable to cyclones.
Q.24: ___________ plays an important role in the formation of storms.
Ans: wind speed
Q.25: The instrument that measures the wind speed is called an _____________.
Q.26: _____________ is issued 48 hours in advance of any expected storm.
Ans: cyclone alert or cyclone watch
Q.27: _____________ is issued 24 hours in advance of any expected storm.
Ans: cyclone warming