Answer:
oxygen
Explanation:
The oxygen makes up 21% of the atmosphere. hope it helps.
Answer:
all but option b is incorrect as in your list
The drug cyclosporine is usually given with a sperate injection of steroids to help keep the organ receiver from rejecting the organ during surgery.
Answer
Explanation:
the moon would have to be closer to the earth for it to perfectly align with the sun, or if it were smaller it would look like a circle with a smaller black circle in the middle.
Answer:
Explanation:
Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down rainforests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming
