Match the following layers of the atmosphere with their key features: Layers: 1) Troposphere Features: A) Contains weather phenomena
2) Stratosphere
3) Mesosphere
4) Thermosphere
B) Contains the ozone layer
C) Burns up meteoroids
D) Contains the ionosphere
1-A, 2-B, 3-C, 4-D
Pairing each atmospheric layer with its defining feature:
1) Troposphere → A. The lowest layer (~0–12 km), where almost all weather phenomena (clouds, rain, storms) occur because nearly all water vapour and dust are concentrated here.
2) Stratosphere → B. The layer above the troposphere (~12–50 km), home to the ozone layer that absorbs the bulk of the Sun's harmful ultraviolet radiation.
3) Mesosphere → C. Above the stratosphere (~50–85 km), where most meteoroids burn up due to friction with thinly distributed gas molecules — producing the streaks we see as "shooting stars".
4) Thermosphere → D. The layer above the mesosphere (~85–600 km) which contains the ionosphere — a region of ionised gas critical for long-distance radio-wave reflection and the location of auroras.
Hence the correct match is 1-A, 2-B, 3-C, 4-D.
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