As a result of which treaty, ozone hole in Antarctica is slowly healing...? Mcqs

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As a result of which treaty, ozone hole in Antarctica is slowly healing...?

(A) Koyoto protocol
(B) Ottawa treaty

(C) Montreal protocol
(D) Oslo Accord

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We may feel internal injury or altitude sickness at higher or lower altitudes than sea level because...?

(A) Our body adjusts to pressure changes rapidly
(B) Our body adjusts to pressure changes slowly

(C) Our body does not adjust to pressure changes
(D) Our body only adjusts to pressure changes upwards

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If the direction of magnetic field is reversed, the direction of force is _____...?

(A) Reversed
(B) Not reversed

(C) May or may not reversed
(D) None of these

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An atom is neutral but when an atom or molecule that carries net electric due to gain or loss of an electron is called an...?

(A) Ion
(B) Molecule

(C) Anion
(D) Cation

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The shortest path of reflex action consists of _____...?

(A) 1 neuron
(B) 2 neurons

(C) 3 neurons
(D) Many neurons

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A device that converts mechanical energy into electric energy is called_______...?

(A) Motor.
(B) Transformer.

(C) Coil.
(D) Generator.

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Which four planets are also called the terrestrial planets...?

(A) Inner planets (Mercury, Venus, Earth, and Mars)
(B) Outer planets (Jupiter, Saturn, Uranus, and Neptune)

(C) Inner planets (Mercury, Venus) and outer planets (Uranus, Neptune)
(D) Inner planets (Earth, Mars) and outer planets (Jupiter, Saturn)

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Transistors do not need a warm up period because they have no ...?

(A) Plate
(B) Grid

(C) Filament
(D) None of above

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Gulf streams are caused by__________....?

(A) Cyclones
(B) Ocean Pressure

(C) Temperature
(D) Difference in water level

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Pascal’s Principle is widely used in a _____...?

(A) Electrical System
(B) Hydraulic System

(C) Pneumatic System
(D) Mechanical System

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