Question

The lower part of the wave is called trough. To
iii. Our earth is known as the 'Red planet'.​

Answer 1

Explanation:

Mars is often called the 'Red Planet' because it appears in the sky as an orange-red star. The colour caused the ancient Greeks and Romans to name it after their god of war. Today, thanks to visiting spacecraft, we know that the planet's appearance is due to rust in the Martian rocks.

Answer 2

Answer:

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