4. What do you think would happen to the amount of oxygen in the atmosphere if all of Earth's algae suddenly died off?
5. True or False: Plants and animals perform respiration.
6. True or false: Once animals use oxygen, it can never be replaced.
7. True or False: Algae cannot make their own food.
8. True or False: Plants produce oxygen as a waste product of
photosynthesis.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

Distillation.  distillation is the correct answer.

The correct answer is a