Why is photosynthesis important?

a. it produces oxygen that all living organisms need to exist.

b. it produces glucose, providing food for many animals.

c. it decreases the amount of carbon dioxide in the atmosphere.

d. all of the above

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

The boiling point of liquids is very high what does it indicate

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =