An undesirable change in the characteristics of air, water and land environment that is harmful to humans and living things is known as...? Mcqs

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An undesirable change in the characteristics of air, water and land environment that is harmful to humans and living things is known as...?

(A) Pollutant
(B) Pollution

(C) Climate Change
(D) Global Warning

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In a transverse wave, the ______ is the distance b/w its two adjacent crests or troughs...?

(A) Wavelength
(B) Frequency

(C) Amplitude
(D) Velocity

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The cause for the Tsunami, as deduced by the seismologists, is...?

(A) gravitational pull of the moon
(B) low pressure trough in the ocean

(C) deformation of sea floor and vertical displacement of water
(D) sudden change in the monsoon wind

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Which is the largest gland in the human body...?

(A) Thyroid
(B) Liver

(C) Pancreas
(D) None of these

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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%

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Which Vitamin gets destroyed on heating...?

(A) B
(B) E

(C) K
(D) C

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Who discovered the blood group of man...?

(A) Edward Jenner
(B) Laren

(C) Karl Landsteiner
(D) William Harvey

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Water vapor is ______________...?

(A) A gas
(B) A cloud droplet

(C) A rain drop
(D) A snowflake

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Which waves are used in sonography...?

(A) Ultrasonic waves
(B) Electromagnetic Waves

(C) Fundamentals of waves
(D) Transverse wave

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The brain of human adult weighs about_________...?

(A) 1200 – 1300 gm
(B) 1600 – 2000 gm

(C) 500 – 800 gm
(D) 100 – 200 gm

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