atmosphere & climatology section 5 MCQ Questions & Answers Detailed Explanation

Answer: (b)

Answer: (d)

Air masses are relatively large bodies of air that are fairly horizontally uniform in characteristics. These air bodies are relatively uniform in temperature and moisture content and may extend across an entire continent.

Answer: (b)

Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the “Westerlies”.

They are also known as “Anti-Trade Winds”, because their movement is in the opposite direction from that of the trade wind.

Answer: (c)

As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun.

This can happen only at the new moon when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon.

In partial and annular eclipses only part of the Sun is obscured. The moon blocks out the bulk of the sun allowing us to see the chromosphere and corona.

Answer: (d)

The troposphere is the lowest portion of Earth's atmosphere. It contains approximately 80% of the atmosphere's mass and 99% of its water vapor and aerosols. Most of the phenomena we associate with day-to-day weather occur in the troposphere.

Answer: (d)

It is latent heat released during the vaporization, the atmosphere is heated after converging solid into liquid, liquid into gas.