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Geography

Layers of the atmosphere

In Class 11 Geography, this topic explains how Earth’s atmosphere is arranged into distinct layers—troposphere, stratosphere, mesosphere, thermosphere and exosphere—and how temperature, pressure, density and composition change with altitude. Students connect the troposphere with weather and climate, the stratosphere with the ozone layer, and the upper layers with satellites and auroras. The lesson builds a clear foundation for understanding the composition and structure of the atmosphere and its importance for life and human activities.

Medium · Level 7 · 8 questions

TOPIC PRACTICE

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  1. It stays fixed at the same height everywhere
  2. Its height can vary with latitude, season, and atmospheric conditions
  3. It lies below sea level
  4. It begins beyond the exosphere
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  1. The beginning of rainfall
  2. Gases changing into liquid
  3. Temperature reaching a minimum at the mesopause and increasing above it
  4. The end of sea breezes
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  1. Troposphere
  2. Stratosphere
  3. Thermosphere
  4. Lower boundary layer
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  1. The troposphere is a layer in the thermal classification, and the homosphere is the region where gases are relatively well mixed
  2. The troposphere is a layer formed only by the sea
  3. The heterosphere is classified according to rainfall
  4. The thermosphere is classified according to soil formation
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  1. The exobase is the lower boundary of the exosphere; above it, collisions between particles are very infrequent
  2. The exobase produces rainfall at sea level
  3. The exobase is another name for the ozone maximum
  4. The exobase is the lower boundary of the troposphere
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  1. Thermosphere
  2. Troposphere
  3. Lower boundary layer
  4. Sea level
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  1. Stratosphere, troposphere, thermosphere, mesosphere
  2. Troposphere, stratosphere, mesosphere, thermosphere
  3. Mesosphere, stratosphere, troposphere, exosphere
  4. Exosphere, thermosphere, mesosphere, stratosphere
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  1. Troposphere
  2. Exosphere
  3. Stratosphere
  4. Near-surface boundary layer

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