Q: What makes up 99 percent of air? Choices: - oxygen and dioxide - phosphorus and oxygen - dioxide and nitrogen - nitrogen and oxygen A:
nitrogen and oxygen

(Question)
Q: What is the basic characteristic of monoprotic bases? Choices: - accepts one neutron - accepts no neutrons - accepts no protons - accepts one proton A:
(Answer)
accepts one proton

Ques: Q: What are the structures in the cytoplasm where proteins are made? Choices: - nucleus - chromosomes - prokaryotes - ribosomes A:
Ans: ribosomes

(Q).
Q: What physical property of matter reflects how closely packed the particles of matter are? Choices: - makeup - build up - mass - density A:
(A).
density

Ques:Q: When electric current flows through a wire, it creates what type of field that surrounds the wire in circles? Choices: - gravitational - kinetic - thermal - magnetic A:

Ans:magnetic

Q: The process where eroded material is dropped somewhere is called? Choices: - maturation - diffusion - diffusion - deposition A:
deposition