501. Virus is_____?
A: Multicellular
B: Unicellular
C: Acellular
D: None of these
502. Who discovered blood circulation?
A: Francis Crik
B: Carl Linnaeus
C: Robert. Brown
D: William Harvey
503. The density of Air is________?
A: 1.025 kg/m3
B: 0.225 kg/m3
C: 1.225 kg/m3
D: 1.425 kg/m3
504. It is a secondary plant nutrient?
A: Phosphorus
B: Nitrogen
C: Sulphur
D: None of these
505. Being Myopic means you have a problem in seeing __?
A: Close objects clearly
B: Distant objects clearly
C: Both A and B
D: Distant and close objects look unclear
506. Phosphorus is an essential component of one of the following biological molecules:
A. Amino acids
B. Nucleic acids
C. Carbohydrates
D. None of these
507. He was the first scientist to prove that plants move around the sun:
A. Archimedes
B. Galileo Galilee
C. John Kepler
D. None of these
508. Atom is made up of __ different kinds of subatomic particles:
A. Three
B. Two
C. Four
D. One
509. Uranium is best used as nuclear fuel in one of the following forms:
A. U235
B. U237
C. U238
D. None of these
510. The alpha particles are compact clusters of:
A. Electron and proton
B. Two protons and two neutrons
C. Three protons and three neutrons
D. None of these
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