Prepare for your upcoming test with Everyday Science MCQs and their Answers. We have compiled essential questions on various aspects of Everyday Science, including Biology, Chemistry, Atmospheric Studies, General Physics, Environmental Science, and Scientific facts. Most repeated Everyday Science MCQ section frequently encountered in CSS, PMS, Inspector, ASI, Sub-inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams, as well as government and private job assessments.
11. The sun appears red at sunrise and sunset while it appears white at noon, because
A. Of refraction
B. It is cooler at sunrise and at sunset
C. Of diffraction leading to red end of the spectrum reaching the earth.
D. Of Scattering of light due to dust particles and air molecules.
12. An astronaut inside a spacecraft is in a state of weightlessness. This implies that?
A. The mass of the astronaut is reduced to zero
B. Gravity inside the spacecraft ceases to act
C. The astronaut is outside the influence of the earth’s gravitational force
D. The astronaut and the spacecraft are both in a free-failing state
13. An iceberg is floating in sea. How much of its mass will remain above the surface of water?
A. One tenth
B. One fifth
C. One fourth
D. One third
14. Most of the ozone in the atmosphere is concentrated in the _____________?
A. Mesosphere
B. Troposphere
C. Stratosphere
D. ionosphere
15. The cow’s milk contains how much amount of water in terms of percentage?
A. 60%
B. 65%
C. 72%
D. 80%
16. T.V. transmission cannot cover a very large area because
A. the strength of T.V. waves is very limited
B. picture cannot be transmitted clearly after a specific distance
C. the shape of the earth is spherical
D. the air is not a good conductor of light and sound/waves
17. The Green House Effect is caused by an excess of ?
A. Carbon dioxide
B. Carbon monoxide
C. Carbon tetrachloride
D. None of the above
18. Bats can also fly in dark because they are capable of taking the help of _________?
A. Ultraviolet Waves
B. Ultrasonic Waves
C. Electromagnetic Waves
D. Special Retina
19. What is ‘Stealth Technology‘?
A. A device which when attached to an aircraft makes it invisible on the radar
B. A coating which reduces the visibility of an aircraft on radar
C. A Technology by which it is possible for the aircraft’s to spy in the enemy air-space
D. A technology by using which paratroopers can be dropped stealthily behind the enemy columns.
20. 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