Question

Why does moon have very cold and very hot temperature variations eg., from $-{190}^{\circ }C$ to ${110}^{\circ }C$ even though it is at the same distance from the sun as the earth is?

Answer 1

Atmosphere:

• The atmosphere shields life on earth from harmful ultraviolet (UV) radiation, insulates the globe to maintain a comfortable temperature, and prevents temperature extremes between day and night.
• The atmosphere of the planet is affected by the sun's heat and light.
• The atmosphere absorbs some of it, and the remainder is reflected back.
• As a result, the planet doesn't become too heated throughout the day.
• The planet keeps from cooling down too much at night because to the heat that is contained in the atmosphere.
• As a result, the atmosphere acts as a blanket around the planet, helping to maintain the appropriate temperature for life.

Reason for the temperature variation:-

• Atmosphere is the thing which is responsible for the temperature variation in any planet.
• Planets which contains atmosphere will not be having that much temperature difference but the planets which has no atmosphere will be having temperature difference.

For Moon:-

• Moon has no atmosphere and due to this the heat from the sun will reach the land directly.
• As there is no atmosphere at night, heat evaporated can not be trapped in the atmosphere and that's why there will be a drastic change in the temperature from $-{190}^{\circ }\mathrm{C}$ to ${110}^{\circ }\mathrm{C}$ .