Everyday Science Most Important MCQs Five
Showing 61 – 70 of 88
How many bones are there in a newly born infant?
- A. 206
- B. 230
- C. 280
- D. 300
Short-sightedness can be corrected by using ________?
- A. Convex lens
- B. Concave lens
- C. Convex-concave lens
- D. Concave-convex lens
A lake starts freezing because of the cold atmosphere. It will first freeze
- A. At the bottom
- B. In the middle pan
- C. At the top surface
- D. Uniformly throughout the water body
The primary function of the feathers in birds is to ________?
- A. Provide insulation for preserving body heat
- B. Provide striking surface to the wings for flying
- C. Make the body surface waterproof
- D. Impart coloration for species as well as sex recognition
Detergents dissolved in water help in cleaning clothes by ________?
- A. Increasing the temperature of water
- B. Reacting chemically with dirt
- C. Reducing the surface tension of water
- D. Dissolving dirt
The field of specialization of famous Muslim scientist Abu Usman Aljahiz was?
- A. Botany
- B. Zoology
- C. Astronomy
- D. None
Deuterium differs from Hydrogen in having:
- A. Different atomic number but same atomic weight
- B. Different atomic number and different atomic weight
- C. Same atomic number and different atomic weight
- D. None
Atom is made up of ________ different kinds of subatomic particles:
- A. Three
- B. Two
- C. Four
- D. None
The number of electrons of a neutral atom is automatically known if one knows the?
- A. Atomic number
- B. Atomic weight
- C. Number of orbitals
- D. None
The approximate intensity level of the sound which can cause damage to the ear drum is?
- A. 20 dB
- B. 60 dB
- C. 100 dB
- D. 160 dB
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