Waves having crests and troughs with oscillation (movements) of particles perpendicular to the direction of wave propagation are named as...? Mcqs

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Waves having crests and troughs with oscillation (movements) of particles perpendicular to the direction of wave propagation are named as...?

(A) Longitudinal Waves
(B) Electromagnetic Waves

(C) Transverse Waves
(D) Mechanical Waves

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What is the harm from the depletion of Earth's Ozone Layer...?

(A) The average operation of the Earth's surface will increase gradually
(B) The oxygen content of the atmosphere will decrease

(C) Increased amount of UV rays will reach Earth's surface
(D) Sea levels will rise as the glaciers' caps will gradually melt

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Which part of cell controls all the chemical reactions of the cell and it contains chromosomes...?

(A) Cell membrane
(B) Cytoplasm

(C) Vacuoles
(D) Nucleus

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Weather satellites are used for _____...?

(A) Provide weather forecasting
(B) TV signal broadcasting

(C) Telecommunication
(D) Space exploration

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The process of sublimation _______...?

(A) A solid turns directly into a liquid
(B) A liquid turns directly into a gas

(C) A gas turns directly into a liquid
(D) A solid turns directly into a gas

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Comets are made mostly of ______________...?

(A) Ice and dust
(B) Dust and lights

(C) Ice, dust and lights
(D) All of the above

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Electronics comprises the _________...?

(A) Physics
(B) Engineering

(C) Technology
(D) All of these

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For glavinizing of iron which of the following metals is used ...?

(A) Aluminimum
(B) Copper

(C) Zinc
(D) Lead

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A process of separating insoluble solids from a mixture is called...?

(A) Crystallization
(B) Filtration

(C) Distillation
(D) Sublimation

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An average human heart beats about time in a minute...?

(A) 72 times
(B) 85 times

(C) 90 times
(D) 120 times

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