The atmospheric air is held to the Earth by...?

PPSC Past Papers

Latest MCQs

The atmospheric air is held to the Earth by...?

(A) gravity

(B) winds

(C) clouds

(D) rotation of the Earth

✅ Correct Answer: gravity

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

The principal constituent of the atmosphere of the Earth is...?

(A) Oxygen

(B) Carbon

(C) Hydrogen

(D) Nitrogen

✅ Correct Answer: Nitrogen

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________...?

(A) Conduction of heat upward from a hot surface

(B) Convection from a hot surface

(C) Absorption of infrared energy that has been radiated from the surface

(D) Heat energy from the earth’s interior

✅ Correct Answer: Heat energy from the earth’s interior

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it...?

(A) 10%

(B) 20%

(C) 30%

(D) 50%

✅ Correct Answer: 30%

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

Which of the following atmospheric layers help in radio communication...?

(A) Exosphere

(B) Ionosphere

(C) Troposphere

(D) Stratosphere

✅ Correct Answer: Ionosphere

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

The gases which are used by drivers as an artificial atmosphere are helium and_____________...?

(A) Nitrogen

(B) Oxygen

(C) Neon

(D) Carbon monoxide

✅ Correct Answer: Oxygen

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

_________ is the atmospheric layer that absorbs most of the ultraviolet radiation that Earth receives from the Sun....?

(A) Troposphere

(B) Stratosphere

(C) Mesosphere

(D) Ionosphere

✅ Correct Answer: Stratosphere

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

Which part of the atmosphere are you breathing right now...?

(A) Bathysphere

(B) Stratosphere

(C) Troposphere

(D) Lonosphere

✅ Correct Answer: Troposphere

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

Stratosphere is the atmospheric layer that absorbs most of __________ that Earth receives from the Sun....?

(A) Infrared radiation

(B) Ultraviolet radiation

(C) Ozone layer

(D) Radio waves

✅ Correct Answer: Ultraviolet radiation

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

Which among the following is the correct sequence of the various layers of the Atmosphere from the Earth’s surface...?

(A) Ionosphere, Mesosphere, Stratosphere, Troposphere

(B) Mesosphere, Stratosphere, Ionosphere, Troposphere

(C) Troposphere, Stratosphere, Mesosphere, Ionosphere

(D) Troposphere, Ionosphere, Stratosphere, Mesosphere

✅ Correct Answer: Troposphere, Stratosphere, Mesosphere, Ionosphere

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

__________ is the atmospheric layer wherein the weather occurs....?

(A) Troposphere

(B) Stratosphere

(C) Mesosphere

(D) Thermosphere

✅ Correct Answer: Troposphere

Comments

Source: This question is taken from the Everyday Science

Latest MCQs

Atmosphere is held in place by...?

(A) Pressure of the planetary body

(B) Gravity of the planetary body

(C) Charge of the planetary body

(D) Heat of the planetary body

✅ Correct Answer: Gravity of the planetary body

Comments

Source: This question is taken from the Everyday Science

The atmospheric air is held to the Earth by...? Mcqs

PPSC Past Papers