Answer:
A - Earth orbits around the Sun
Explanation:
Heliocentric means sun at center
The haystack rock is made of oceanic crust
Answer:
Animals breathe oxygen and exhale carbon dioxide.
Plants take in carbon dioxide and release oxygen back into the air.
Explanation:
The water flowing in a stream or river is fed by numerous smaller streams, which are fed by even smaller streams that collect water from melting snow or ice up in the mountains, from springs, and possibly from human wasterwater sources. The bottoms of rivers are also below the water table in many places, so there will always be water at that level.