atmosphere & climatology section 5 MCQ Questions & Answers Detailed Explanation

Answer: (c)

There are six main requirements for tropical cyclogenesis:

1. Sufficiently warm sea surface temperatures, atmospheric instability,
2. High humidity in the lower to middle levels of the troposphere,
3. Enough Coriolis force to sustain a low-pressure centre,
4. A preexisting low-level focus or disturbance, and low vertical wind shear,
5. While these conditions are necessary for tropical cyclone formation and
6. They do not guarantee that a tropical cyclone will form.

Answer: (d)

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

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)

Sleet is precipitation composed of rain and partially melted snow. It forms when rain, while falling to the earth, passes through a layer of cold air and freezes. Sleet occurs when the temperature in the lowest part of the atmosphere is slightly above the freezing point of water (0 °C).

Answer: (b)

Answer: (c)

Doldrums are noted for their calm periods when winds disappear totally. They are a low pressure area around the equator.