Answer:
A
Explanation:
In tropical rain forests, rainlevels fluctuate in that pattern throughout a year.
All matter is made up of atoms (A) because atoms are the basic unit of everything.
Answer : Option A) He is studying oxygen, which can also be found in proteins.
Explanation : A scientist is examining the role of an element found in fats and carbohydrates of living things. Oxygen is the element which makes up to 65% of human body mass. This is also found in proteins inside the body.
Answer: Photosynthesis is when a plant uses the sun make water and carbon dioxide. It provides its own food.
Explanation: