The number of vibrations (waves) per second is known as:
- (A) Magnitude
- (B) Frequency
- (C) Amplitude
- (D) Wavelength
- (B) Frequency
Asteroids are _______, which are part of our solar system.
- (A) Icy bodies
- (B) Rocky bodies
- (C) Round bodies
- (D) Liquid bodies
- (B) Rocky bodies
The unit of measurement to measure rainfall is:
- (A) Millimeter or centimeter
- (B) Percentage
- (C) Milliliter (mm)
- (D) Degree Celsius
- (C) Milliliter (mm)
Double-helix structure of DNA is discovered by:
- (A) Gobind Khurana
- (B) Watson and Crick
- (C) Nirenberg
- (D) Charles Darwin
- (B) Watson and Crick
If the pH value is greater than 7, then solution is:
- (A) Acid
- (B) Basis
- (C) Neutral
- (D) Salty
- (B) Basis
NASA’s Perseverance Rover landed at Mars on:
- (A) 21st February, 2021
- (B) 20th February, 2021
- (C) 19th February, 2021
- (D) 18th February, 2021
- (D) 18th February, 2021
In water treatment plants, the gas used to kill germs is:
- (A) Fluoride
- (B) Chlorine
- (C) Butane
- (D) Benzene
- (B) Chlorine
Kilowatt-hour is the largest unit of electricity, whereas the smallest is:
- (A) Watt
- (B) Joule
- (C) Coulomb
- (D) Ampere
- (B) Joule
Which fuel is used for nuclear power plant?
- (A) Coal
- (B) Uranium
- (C) Gasoline
- (D) Water
- (B) Uranium
A human baby is similar to human, this property is called:
- (A) Locomotion
- (B) Heredity
- (C) Reproduction
- (D) None of these
- (B) Heredity