Atmosphere & Weather — Set 6
Geography · वायुमंडल और मौसम · Questions 51–60 of 60
What is the full form of ITCZ?
Correct Answer: C. Inter-Tropical Convergence Zone
ITCZ stands for Inter-Tropical Convergence Zone. It is the area near the equator where the northeast and southeast trade winds converge. It is characterized by low pressure and rising air.
Acid rain is primarily caused by emissions of Sulfur Dioxide and?
Correct Answer: A. Nitrogen Oxides
Acid rain is caused by Sulfur Dioxide (SO2) and Nitrogen Oxides (NOx). These gases react with water, oxygen, and other chemicals to form sulfuric and nitric acids. This falls to the ground as acid rain.
Frozen raindrops falling from clouds are known as?
Correct Answer: C. Sleet
Sleet refers to frozen raindrops or ice pellets. It occurs when rain falls through a freezing layer of air near the ground. It is distinct from hail and snow.
Which local wind is known as 'Doctor Wind' in West Africa?
Correct Answer: D. Harmattan
Harmattan is known as the 'Doctor Wind'. It is a dry, dusty wind that blows from the Sahara over West Africa. It brings relief from the humid tropical heat.
The amount of solar energy received by the Earth is called?
Correct Answer: D. Insolation
Insolation stands for Incoming Solar Radiation. It is the amount of solar energy that reaches a given area on Earth. It varies with latitude, season, and time of day.
A mixture of smoke and fog is commonly known as?
Correct Answer: D. Smog
Smog is a type of air pollution derived from smoke and fog. It reduces visibility and is harmful to health. Photochemical smog is a modern type caused by vehicle emissions.
The transition zone between the Troposphere and Stratosphere is called?
Correct Answer: D. Tropopause
The Tropopause is the boundary layer between the Troposphere and the Stratosphere. Here, the temperature stops decreasing with height. It marks the upper limit of most weather disturbances.
Which instrument is used to measure the amount of rainfall?
Correct Answer: A. Rain Gauge
A Rain Gauge is used to measure liquid precipitation. It typically consists of a measuring cylinder and a funnel. It measures rain in millimeters or inches.
Condensation occurring on the ground surface when temperature is above freezing is called?
Correct Answer: B. Dew
Dew is liquid water droplets formed on surfaces like grass. It forms when the surface cools below the dew point of the surrounding air. If the temperature is below freezing, frost forms instead.
Which layer of the atmosphere contains the 'Van Allen Radiation Belts'?
Correct Answer: D. Magnetosphere/Exosphere
The Van Allen Radiation Belts are found in the Magnetosphere, overlapping with the Exosphere. They trap energetic charged particles from the solar wind. This protects the Earth from harmful particle radiation.