The important gas named was not present in the early earths atmosphere. Therefore, the first cells to evolve were organisms.

Ryan rears sheep for their wool. recently the quantity of wool that ryan gets has diminished. this is because the new sheep are not that wooly. ryan should add which nutrient to their feed so that the sheep becomes more wooly? a.cornb.ironc.cottonseedd. vitamin a

How does friction with the atmosphere affect the speed of an artificial satellite

Wich organism obtains its energy from dead or decaying matter