(Q).
Q: What is the name for elements that neither contain carbon nor come from living things? Choices: - acids - contaminants - pigments - minerals A:
(A).
minerals

(Q).
Q: Rising air currents carry water vapor into what? Choices: - stratosphere - ionosphere - troposphere - atmosphere A:
(A).
atmosphere

(Q).
Q: Most of the gray matter is on the surface of the brain, surrounding what other type of matter? Choices: - blue - dark matter - corrugated - white A:
(A).
white