Which of the following are the building blocks of matter?
- (A) Cells
- (B) Atoms
- (C) Molecules
- (D) None of these
Hearing takes place whenever vibrations of frequencies ranging from:
- (A) 10 to 10,000 Hertz
- (B) 20 to 20,000 Hertz
- (C) 30 to 30,000 Hertz
- (D) None of these
The best source of “Iodine” is:
- (A) Green leafy vegetables
- (B) Sea foods
- (C) Fresh citrus fruits
- (D) None of these
Which of the following is used in circuit to prevent electric shocks?
- (A) Plug
- (B) Fuse
- (C) Piezo
- (D) None of these
How many layers are in Earth’s atmosphere?
- (A) 4
- (B) 5
- (C) 6
- (D) None of these
Einstein’s famous equation which states that mass and energy are interchangeable is:
- (A) E=mc
- (B) E=mc2
- (C) E=cm2
- (D) None of these
The principal constituent of the atmosphere of the Earth is:
- (A) Hydrogen
- (B) Oxygen
- (C) Nitrogen
- (D) None of these
Deficiency of _______ causes loss of appetite and poor growth.
- (A) Zinc
- (B) Iodine
- (C) Copper
- (D) None of these
What is the chemical name of laughing gas?
- (A) Nitric Oxide
- (B) Nitrogen Oxide
- (C) Nitrous Oxide
- (D) None of these
A disease in which blood supply to the heart is inadequate, known as:
- (A) Alopecia
- (B) Angina
- (C) Pericarditis
- (D) None of these