Q: What is a layer of tissue that lies between the shell and the body? Choices: - stem - silt - node - mantle A:
mantle

(Question)
Q: The burning of what type of fuels is a major source of sulfur oxides and nitrogen oxides? Choices: - biofuels - renewable - synthetic - fossil A:
(Answer)
fossil

Ques: Q: What is it that surrounds cells and serve to keep the insides separated from the outsides? Choices: - inner membranes - abundant membranes - similar membranes - biological membranes A:
Ans: biological membranes

(Q).
Q: What usually causes fractures on a bone? Choices: - compressive stress - shear stress - extra weight - excessive bending stress A:
(A).
excessive bending stress

Ques:Q: The mild oxidation of thiols gives compounds called what? Choices: - carbonates - halides - dioxides - disulfides A:

Ans:disulfides

Ques:Q: Pressure is defined as the force per unit area on? Choices: - weight - gravity - speed - surface A:

Ans:
surface