Radiations are harmful as it:___________...? Mcqs

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Radiations are harmful as it:___________...?

(A) Causes skin cancer
(B) Causes anemia

(C) Alters body tissue
(D) is unstable

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Heavy mechanical complex use a large amount of water for_________...?

(A) Cooling
(B) Freezing

(C) Washing
(D) Mixing

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Fog that most often forms as warm rain falls into a cold layer of surface air is called ______________...?

(A) Radiation fog
(B) Evaporation (mixing) fog

(C) Advection fog
(D) Upslope fog

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There are ______types of respiration takes place in frog....?

(A) 1
(B) 2

(C) 3
(D) None of these

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The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from____________ ...?

(A) Ionosphere
(B) Troposphere

(C) Mesosphere
(D) Stratosphere

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What is meant by intermediate goods and services...?

(A) The same as capital goods, such as plants, buildings, vehicles, and machinery.
(B) Products which one firm buys off another and then uses up in its own products.

(C) All inputs bought by firms, including labor and raw materials.
(D) Imports.

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In the Composition of the earth, Aluminum is _______________...?

(A) 27.5%
(B) 20.3%

(C) 14.5%
(D) 8.23%

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speed of sound in dry air at 20 °C is___________...?

(A) 353 m/s
(B) 345 m/s

(C) 343 m/s
(D) none of them

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A chronometer meter measures __________ ...?

(A) Water waves
(B) Color contrast

(C) Time
(D) Sound waves

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The term PVC used in the plastic industry stands for______________...?

(A) Phosphavinyl chloride
(B) Phosphor vanadiu chloride

(C) Polyvinyl chloride
(D) Polyvinyl carbobate

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