Answer:
A- It is a required subject in evry school
B-agriculture
Explanation:
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:
Silk was a major industry<span> in the </span>Byzantine<span> Empire.</span>
