Which part of the donated eye is used by the recipient?
- (A) Cornea
- (B) Retina
- (C) Iris
- (D) None of these
- (A) Cornea
The material used for bleaching paper pulp is:
- (A) Caustic acid
- (B) Sodium hypochlorite
- (C) Lime
- (D) None of these
- (B) Sodium hypochlorite
“Equinox” is unique phenomenon when:
- (A) A day is shortest in a year
- (B) When day and night are equal in a year
- (C) A day is longest in a year
- (D) None of these
- (B) When day and night are equal in a year
Which one of the following metals pollutes the air of a city having large number of automobiles?
- (A) Cadmium
- (B) Chromium
- (C) Lead
- (D) None of these
- (C) Lead
The ‘Green House Effect’ is caused by an excess of:
- (A) Carbon dioxide
- (B) Carbon monoxide
- (C) Carbon tetrachloride
- (D) None of these
- (A) Carbon dioxide
Myopia is a disease related to:
- (A) Feet
- (B) Neck
- (C) Eyes
- (D) None of these
- (C) Eyes
Bats can also fly in dark because they are capable of taking the help of:
- (A) Ultrasonic waves
- (B) Ultraviolet waves
- (C) Electromagnetic waves
- (D) None of these
- (A) Ultrasonic waves
Alzheimer is a disease that damages:
- (A) Spleen cells
- (B) Liver cells
- (C) Nerve cells
- (D) None of these
- (C) Nerve cells
UPS is now widely used in households. What does ‘UPS’ stand for?
- (A) Universal Product Support
- (B) Under Panel Storage
- (C) Uninterruptable Power Supply
- (D) None of these
- (C) Uninterruptable Power Supply
Silicon is a:
- (A) Semi-conductor
- (B) Insulator
- (C) Super-conductor
- (D) None of these
- (A) Semi-conductor