The Earth’s ________ is divided into 15 major plates of various sizes:
- (A)Â Mesosphere
- (B)Â Stratosphere
- (C)Â Lithosphere
- (D)Â None of these
- (C)Â Lithosphere
One of these scientists formulated basic laws of Geometry:
- (A)Â Pythagoras
- (B)Â Archimedes
- (C)Â Aristotle
- (D)Â None of these
- (A)Â Pythagoras
Phosphorus is an essential component of one of the following biological molecules:
- (A)Â Amino acids
- (B)Â Nucleic acids
- (C)Â Carbohydrates
- (D)Â None of these
- (B)Â Nucleic acids
He was the first scientist to prove that plants move around the Sun:
- (A)Â Archimedes
- (B)Â Galileo Galilee
- (C)Â John Kepler
- (D)Â None of these
- (C)Â John Kepler
Atom is made up of subatomic particles: ________ different kinds of
- (A)Â Three
- (B)Â Two
- (C)Â Four
- (D)Â None of these
- (A)Â Three
Uranium is best used as nuclear fuel in one of the following forms:
- (A)Â U 235
- (B)Â U 237
- (C)Â U 238
- (D)Â None of these
- (A)Â U 235
The alpha particles are compact clusters of:
- (A)Â Electron and Proton
- (B)Â Two Protons and two Neutrons
- (C)Â Â Three protons and three Neutrons
- (D)Â None of these
- (B)Â Two Protons and two Neutrons
The Beta particles are fast moving:
- (A)Â Protons
- (B)Â Electrons
- (C)Â Neutrons
- (D)Â None of these
- (B)Â Electrons
One of the following countries produces maximum energy from atomic reactors:
- (A)Â France
- (B)Â USA
- (C)Â UK
- (D)Â None of these
- (A)Â France
The unit to measure the quantity of Ozone in atmosphere is:
- (A)Â Dobson
- (B)Â Dalton
- (C)Â Coulomb
- (D)Â None of these
- (A)Â Dobson