Question

arrangement as to ordinal number sequence (point of reference: earth surface)​

Answer 1

Answer:

Troposhere : The troposphere starts at the earth surface and extend 8 to 14.5 kilometres high (5 to 9 miles ).This part of the atmosphere is the most dense. Almost all weather is in this region.

Stratosphere : The stratosphere starts just above the troposphere and extend to 50 kilometres (31 miles) high. The ozone layer, which absorb and scatters the solar ultraviolet radiation.

Mesosphere :

• meteorites burn up here on entering from the space.
• temperature in this zone decreases with height.
• The mesosphere is above the stratosphere it extends to about 80 kilometres above the earth surface.

Thermosphere :

• These charged particles reflect outgoing radio waves. it make radio transmission possible on earth surface. radio waves transmitted from the earth are reflected back to the earth by this layer.
• it extends from mesosphere to exosphere I. e. from 80 kilometres to 400 kilometres .
• Temperature rises rapidly with height.

Exosphere :

• it is upper most layer of the atmosphere which gradually merges into the space.
• it extends up to height of 750 kilometres from the earth surface.
• it has very thin air light gases like helium and hydrogen are found here that float into the space from here.

Answer 2

Answer:

Troposphere, stratosphere, mesosphere, thermosphere, exosphere.

Explanation:

The arrangement of layers of the atmosphere as to ordinal number sequence is:

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere
• Exosphere

A detailed description of these layers is given below:

1. Troposphere: This layer begins at the surface of the earth and goes as far as $8-14.5$  $km$. The troposphere is the layer that witnesses close to all sorts of climatic conditions.
2. Stratosphere: After the troposphere, the next layer is the stratosphere which extends to $50 \ km$.
3. Mesosphere: Just above the stratosphere, the immediate layer is the mesosphere. The temperature in the mesosphere layer is lesser than in the stratosphere.
4. Thermosphere: This layer extends from $80 \ km$ to $400 \ km$ and has a temperature lesser than the mesosphere.
5. Exosphere: Exosphere is the topmost layer and it extends up to $750 \ km$.

Hence, the arrangement of layers of the atmosphere as to ordinal number sequence is - Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere.

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