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The science of studying living organisms come under which subject ?

Chemistry
Physics
Biology
Neurology

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Biology examines the structure, growth, origin, evolution, distribution, classification and function of all living things.

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The term 'cardiac' is related to what ?

Heart
Kidney
Liver
Brain

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Identify the symbol ?

Ohm.png
Alpha
Ohm
Wavelength
Gamma

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It is the SI unit of electrical resistance.

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Which chemical compound occurs naturally in tea and coffee ?

Cellulose
Nicotine
Caffeine
Maltose

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Caffeine is an alkaloid found in coffee, tea, and many other foods and beverages. Caffeine is stimulating to the heart and nervous system. It is toxic in large doses.

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Who discover the concept of relationship between mass and energy ?

Einstein
Planck
Dalton
Rutherford

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Which two planets do not have moon(s) ?

Jupiter and Mars
Venus and Mercury
Pluto and Jupiter
Saturn and Mercury

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Which organism is associated in making the soil fertile ?

Ringworm
Rats
Earthworm
None of the above

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They convert a large pieces of organic matter into rich humus, and thus improve soil fertility.

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Which of the following is not a heart valve ?

Aortic valve
Mitral valve
Pulmonary valve
Cardisac valve

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The human heart has four valves - Aortic valve, Mitral valve, Pulmonary valve and Tricuspid valve.

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Which type of coal has the highest percentage of carbon fewest impurities of all coals ?

Lignite
Anthracite
Peat
Bituminous

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It is a hard, compact variety of mineral coal that has a high luster. Anthracite is the most metamorphosed type of coal in which the carbon content is between 92% and 98%.

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Which scientific process is used to separate out the different components of crude oil ?

Azeotropic distillation
Extractive distillation
Fractional distillation
Steam distillation

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It is the most common form of separation technology used in petroleum refineries, petrochemical and chemical plants and natural gas processing plants. It is used in oil refineries to separate crude oil into useful substances (or fractions) having different hydrocarbons of different boiling points.

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