11.  What causes the formation of low-pressure area that can lead to the development of a typhoon?*cold and dry airvery low moisture or humiditycold waters surrounded by warm conditionswarm waters surrounded by cold conditions12.  A thunderstorm cloud is a __________.*cumulusnimbostratuscumulonimbusstratus13.  What happens to tropical cyclones when they make a landfall?*they lose strengththey increase in strengththe air rotates in a different directionthe air over the land warms quickly14.  The center of a tropical storm where subsidence occurs and often clearing occurs is termed the:*eyenucleusatomsbrain15.  What is strongest portion of a hurricane including strong winds and heavy rain?*eyeeye wallfeeder bandswall cloudBackNextClear form

1. What do you call this area where North and South easterly trade winds converge and most tropical cyclone occurs?*EquatorIntertropical Convergence ZoneMeridiansPoles2.  What is the category of tropical cyclone when it reaches the maximum sustained winds of 58 km/hr?typhoontropical stormsuper typhoontropical depression3.  Which factor may  weaken the strength of a typhoon?*Wind speedWind directionAmount of moistureTemperature at 26.5 degrees Celcius4.  Which of the following minimum temperatures does a tropical cyclones form?*27 C25 C20 C15 C5.  Which of the following words describes a region of “warm and humid”?*DryPolarTropicalTemperate

What is the key variable for hurricane development?Group of answer choicesWarm tropical seawaterHigh wind speedsStrong ocean currentsAn area of strong high-pressure

What is a cyclone?a)  A rapid inward air circulation around a low-pressure area.b)  A rapid outward air circulation around a high-pressure area.c)  A high-pressure system that forms over warm waters.d)  A localized thunderstorm.

_________ form as warm core cyclones over land, and can lead to tornado formation.

6.  What is the direction of the cyclonic circulation in the northern hemisphere caused by Coriolis effect?*CircularVerticalClockwiseCounterclockwise7. Which would likely happen to a typhoon if it passes over a body of water with increasing temperature?*Typhoon diesTyphoon weakensTyphoon loses energyTyphoon gains energy8. In which part of the world does a tropical cyclone that enters the Philippines Area of Responsibility forms and develops?*Arctic OceanAtlantic OceanIndian OceanPacific Ocean9.  Which of the following is known as the central part of the tropical cyclone?*EyeHubEye wallRain bands10.  What force causes the cyclonic circulation of the wind near the equator.*Air forceWind shearAir pressureCoriolis Effect