General Knowledge MCQs

16403 MCQs  (Page 1511 of 1641)

Study of Human Mind and behaviour is called
A. Hetrology
B. Psychology
C. Philosophy
D. None of these
Nut Cracker is a?
A. Lung
B. Lever
C. Heart
D. None of these
__ is also known as laughing gas.
A. Nitrous oxide
B. Sulfur oxide
C. Carbon dioxide
D. None of these
Greenhouse gas is:
A. ozone
B. methane,
C. carbon dioxide
D. All of these
Mixture of Hydrogen, methane and carbon monoxide is:
A. coal gas
B. Natural gas
C. Methane gas
D. None of these
What gas do plants take in for photosynthesis ?
A. Helium
B. Oxygen
C. Carbon dioxide
D. Hydrogen