Echo is a ___________ of sound...? Mcqs

Latest MCQs

Echo is a ___________ of sound...?

(A) Reflection
(B) Refraction

(C) Interference
(D) None

Latest MCQs

Gears can do all of the following except...?

(A) Change speed
(B) Change direction

(C) Change force
(D) Change fulcrum

Latest MCQs

If nucleon number of potassium is 39, number of neutrons will be _______...?

(A) 39
(B) 19

(C) 20
(D) 29

Latest MCQs

During which process does heat transfer occur because of density differences__________...?

(A) Convection
(B) Radiation

(C) Conduction
(D) None of these

Latest MCQs

Which of the following gas mainly responsible for ozone layer depletion...?

(A) Chlorofluorocarbon
(B) CO2

(C) Nitrogen oxide
(D) Sulphur dioxide

Latest MCQs

Which of these are involved in the clotting of blood...?

(A) Platelets
(B) Haemoglobin

(C) Albumin
(D) Globulin

Latest MCQs

In which mode heat transfer in liquids and gases...?

(A) Convection
(B) Radiation

(C) Conduction
(D) None

Latest MCQs

The most abundant element in human body is __________...?

(A) Hydrogen
(B) Blood

(C) Oxygen
(D) Protein

Latest MCQs

The phases of the moon are partially the result of the____________...?

(A) Changes in the shape of the moon
(B) Revolution of the moon around the earth

(C) Variations in the moon’s gravitation
(D) Variations in the speed of rotation of the moon

Latest MCQs

What is the molecular formula for Nitric acid ________ ...?

(A) HNO2
(B) HNO3

(C) HN2O2
(D) H2NO4

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