Theory states that the extraterrestrial forces that have influenced climate rhythms over the last two million years have occurred primarily because of cyclical changes in earth’s orbit around the sun. identify which statement is true. a) every 41,000 years, the tilt of earth’s spin axis oscillates between 17.5° and 19.5°. b) every 41,000 years, the tilt of earth’s spin axis oscillates between 19.5° and 21.5°. c) every 41,000 years, the tilt of earth’s spin axis oscillates between 21.5° and 24.5°. d) every 41,000 years, the tilt of earth’s spin axis oscillates exactly 21.5°.

Option (C)

Explanation:

The earth's orbit has directly affected the earth's climate over the last 2 million years as it changes over a due course of time which is caused due to the extraterrestrial forces.

The tilt of the earth's imaginary rotating axis is about 23.5° and it keeps on fluctuating in a range between 21.5°  and 24.5°, which takes place over a time period of 41,000 years. This forms a part of the Milankovitch cycle, which led to the experiencing of the episodic ice age on earth.

Thus, the correct answer is option (C).

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