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Question
Nearness to Sun is normally responsible for hot- weather conditions, but in July earth is farthest from Sun when it is hot in Northern Hemisphere. Why does reverse happen?
Solution
Due to tilt in earth axis the Northern Hemisphere is directly exposed to Sun in July when the Sun rays strike directly. Further considering the enormous distance between sun and earth the difference between the maximum and the minimum distance is small, just 5 million km.
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