(Q).
Q: What is the amorphous form of carbon prepared by the incomplete combustion of natural gas? Choices: - liquid black - dioxide black - dark black - carbon black A:
(A).
carbon black

(Q).
Q: What is the term for atherosclerosis of arteries that supply the heart muscle? Choices: - rapid heart disease - essential heart disease - cardiovascular disease - coronary heart disease A:
(A).
coronary heart disease

(Q).
Q: What is the movement of substances across the membrane without the expenditure of cellular energy called? Choices: - inner cell transport - immune transport - active transport - passive transport A:
(A).
passive transport