Which of the following is an example of homeostasis?
a. talking
b. breathing
c. laughing
d. sitting

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

What type of matter is made of only one kind of atom

Will mark brainliest how many electrons can be held in the energy level n = 4?