Consider the following statements:
1. Atmospheric pressure determines why, when and how the air will rise or sink.
2. Earth’s Tilt along its axis causes variation in atmospheric pressure.
3. Earth’s geoid shape is the primary cause of the seasons.
Which of the above statements is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Explanation Statement 1 is correct. Atmospheric pressure is the weight of the air above. Differences in pressure create gradients, causing air to move from high-pressure areas to low-pressure areas. This movement results in rising and sinking air, which drives various weather patterns.
Statement 2 is correct.The Earth's tilt causes uneven heating of the Earth's surface. Warmer air expands, becomes less dense, and rises, creating areas of low pressure. Cooler, denser air sinks, creating areas of high pressure. This variation in solar radiation due to the tilt leads to pressure differences.
Statement 3 is not correct.The Earth's spherical shape contributes to the uneven heating of the Earth's surface, but the primary cause of seasons is the Earth's tilt. The tilt causes different parts of the Earth to receive varying amounts of direct sunlight throughout the year, leading to the changes in seasons.
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