Consider the following pairs (Layers of Atmosphere : Characteristics):

I. Troposphere : Absorbs ultraviolet radiation

II. Stratosphere : Changes in weather and climate

III. Mesosphere : Reflects radio waves back to the EarthA.NoneB.OneC.TwoD.All the three

Question

Consider the following pairs (Layers of Atmosphere : Characteristics): I. Troposphere : Absorbs ultraviolet radiation II. Stratosphere : Changes in weather and climate III. Mesosphere : Reflects radio waves back to the Earth

Accepted Answer

None. Pair I is wrong. Ultraviolet radiation is absorbed by the stratosphere's ozone layer, not the troposphere. Pair II is wrong. Weather and climate changes happen in the troposphere, the lowest layer, not the stratosphere. The stratosphere sits calmly above the weather, actually growing warmer with height instead of stormier. Pair III is wrong. Radio waves are reflected back by the ionosphere, a charged region overlapping the upper mesosphere and thermosphere. The mesosphere itself is better known for burning up incoming meteors, not for bouncing radio signals. So every single pair here has been swapped around, and none of them is genuinely correct, making option (a) the answer.

Consider the following pairs (Layers of Atmosphere : Characteristics): I. Troposphere : Absorbs ultraviolet radiation II. Stratosphere : Changes in weather and climate III. Mesosphere : Reflects radio waves back to the Earth

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