Consider the following statements regarding the Siberian climate.
1. Taiga vegetation of this climate is the greatest single band of the coniferous forest.
2. This type of climate is conspicuously absent in the Southern Hemisphere because of the narrowness of the southern continents.
Which among the following statements is/are not correct?

Why are tropical deserts located on the western side of the continents?
1. Cold upwelling is witnessed on the eastern shore of ocean in the southern hemisphere
2. Tropical westerlies are on-shore in the northern hemisphere
3. Presence of orographic/mountain barrier
Which of the above-given statements is/are correct?

Consider the following statements.
1. The lowermost layer of atmosphere is called Troposphere whose height is less near equator and more near poles.
2. Upper stratosphere layer is ideal for flying flights.
3. Long nights are conducive for temperature inversion to happen.
4. Inversions play an important role in determining cloud forms, precipitation, and visibility
Which of the above statements are correct?

Consider the following statements about dust particles:
1. They play a significant role in the formation of dusk and dawn.
2. They act as a hygroscopic nucleus around which water vapour condenses to produce clouds.
Which of the above statement/statements is/are true?

The correct sequence of atmospheric gases as expressed in percentage by volume is:

Consider the given statements regarding Karst topography:
1. A region with a large stretch of limestone topography is termed as a Karst region.
2. The name Karst is derived from the Karst district of Yugoslavia on the Adriatic Sea.
3. A Karst topography is characterized by a surface drainage system.
4. Karst regions have bleak landscape usually broken by precipitous slopes.
Which of the above statements is/are correct?