Answer:
"The tilt of the Earth's spin axis with respect to the plane of its orbit about the sun (the ecliptic plane) is important for a habitable Earth. The Earth's spin axis is tilted 23.5° with respect to the ecliptic, giving moderate seasons and preventing temperature extremes anywhere on the planet"
Explanation:
A stream of river that runs into another stream or river is called a tributary.
The answer is A, four weeks (the lunar cycle is about 29.5 days).
