Fossils form in sedimentary rocks such as limestone, shale and sandstone.
Answer:
Cellular respiration that proceeds in the absence of oxygen is anaerobic respiration. Cellular respiration that proceeds in the presence of oxygen is aerobic respiration. Anaerobic respiration evolved prior to aerobic respiration.
Answer: They move during that time because of the fact that the earth move around one its axis around the sun.
Explanation:
A Respiration by animals CO2 is being added.
B trees burning same
C tree leaves removed
D oil added
