Question

The average temperature of the Earth remains fairly steady as compared to that of the moon because of the ______________.
A. Atmosphere
B. Lithosphere
C. Biosphere
D. Hydrosphere

Answer 1

Hint: The Earth’s air consists of different layers with varying density and temperature. Density is highest near the surface of the earth and decreases with increase in altitude.

Complete Answer:The normal temperature of the Earth remains genuinely consistent when contrasted with that of the moon due to the environment. The Earth’s atmosphere comprises approximately 78 percent nitrogen, 21 percent oxygen and 1 percent argon, with trace amounts of other noble gases, hydrogen and carbon dioxide.

Now lets us examine the options
Option A - The atmosphere has the ability to absorb ultraviolet solar radiation which leads to the warming of the earth surface and shields life on earth from intense, harmful form of energy. In other words, Greenhouse gases, namely water vapour, carbon dioxide, methane, nitrous oxide and ozone absorbs heat in the atmosphere which helps to moderate the Earth’s temperatures.
Option B - Lithosphere is the portion of the depth of the earth up to 200 kilometres from the surface of the earth. A solid part of the earth which includes the three main layers of the earth namely, crust, mantle and core lies just below the atmosphere and above the asthenosphere.
Option C - Biosphere is the most active sphere of the earth in comparison to the lithosphere, atmosphere and the hydrosphere. It is a narrow strip of organisms at margins of land, water and air. All organisms together with the environment with which they interact form the biosphere.
Option D - The watery portion of the earth whether water is in oceans, seas, lakes and rivers is termed as hydrosphere.

Thus, the correct answer is option (A).

Note: The Earth’s air consists of different layers and is divided into five sections, depending upon the temperature conditions viz., troposphere, stratosphere, mesosphere, thermosphere and exosphere.