2000 is right answer if not sorry
Answer:
Biosphere comprises all the living components of the Earth. It also includes organic matter that has not yet decayed.
Explanation:
A theory known as the ecosystem better explains the interaction of the biosphere with the other spheres.
Answer:
a, b, and d are the correct answers
Explanation:
The seasons<span> are </span>caused<span> by the tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun. The Earth has a tilt of 23.5 degrees relative to the "ecliptic plane" (the imaginary surface formed by it's almost-cicular path around the sun).</span>