Atmospheric Extreme Events and Hazards

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1. Because of the absence of warm, moist and rising unstable air
2. Because of the low height of icing level above cloud base
3. Because of the absence of trigger effects for causing and augmenting convective mechanisms
4. Because of the absence of orographic obstacles

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1. Four
2. Five
3. Six
4. Three

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1. Maturity stage
2. Dissipating stage
3. Cumulus stage
4. Umbrella stage

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1. Only upward movement of air occurs
2. Only downward movement of air occurs
3. Both upward and downward movement of air occurs
4. The thunderstorm dissipates

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1. The thunderstorm intensifies
2. The thunderstorm dissipates
3. Only upward movement of air occurs
4. Only downward movement of air occurs

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1. On the basis of their color
2. On the basis of their intensity
3. On the basis of their mode of origin and lifting factors and mechanisms
4. On the basis of their geographic location

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1. Frontal thunderstorms
2. Orographic thunderstorms
3. Advectional thunderstorms
4. Heat (thermal) thunderstorms

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1. In the polar regions
2. In the equatorial regions
3. In the coastal regions
4. In the belt of doldrum

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1. They become stronger
2. They become weaker
3. They die out
4. They change their direction

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1. Heat (thermal) thunderstorms
2. Orographic thunderstorms
3. Advectional thunderstorms
4. Frontal thunderstorms

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1. A weak thunderstorm that produces light rainfall.
2. A strong thunderstorm that produces heavy rainfall.
3. A type of hailstorm that causes maximum destruction.
4. A type of thunderstorm that develops during dark nights.

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1. Advuctioinil thunderstorms
2. Warm frontal thunderstorms
3. Cold front thunderstorms
4. Orographic thunderstorms

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1. Slow ascent of air.
2. Lack of humidity and instability.
3. Lack of convection mechanism in the air.
4. Lack of sea breeze.

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1. Low rate of evaporation.
2. Low temperature.
3. Low absolute humidity.
4. Quick condensation and cloud formation due to abrupt rise of air.

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1. Soft hail or graupel.
2. Small hail mixed with rain.
3. Destructive hail or severe hail.
4. None of the above.

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1. Weak and feeble rising convection currents.
2. Strong and intense rising convection currents.
3. High rate of evaporation.
4. Low temperature.

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1. Electrical discharge centres developed in a mature thunderstorm.
2. Sudden and rapid expansion of air columns caused by intense heat resulting from lightning strokes.
3. Downward movement and divergence of cold air at the ground surface.
4. None of the above.

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1. A type of hailstorm that causes maximum destruction.
2. A type of thunderstorm that yields copious heavy rainfall.
3. The downward movement and divergence of cold air at the ground surface.
4. The deafening noise produced by vibrating pressure wave due to rapid expansion of air column.

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1. During the daytime when the sky is clear.
2. After the thunderstorm becomes mature and heavy precipitation occurs.
3. Along the cold front of temperate cyclones.
4. When sea breezes are more humid and unstable.

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1. A type of rainstorm
2. A funnel shaped storm
3. A hurricane
4. A thunderstorm

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