Question # 1

Our skin becomes dark, when exposed to excess sunlight. This is because of our ski9n pigment called

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Flavoxanthin

Melanin

Carotene

Xanthopny ll

Which meta, steel-gray in colour is one if the lightest of all metals, Both the metal and its salts are highly toxic, and must be handled copper , it is extensively used in spring and electrical contacts.

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Gold

Nickel

Silver

Beryllium

Which of these does not produce digestive

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Stomach

Parotid

Thyroid

Pancreas

Amino acids are the building blocks of

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Vitamins

Starch

Proteins

Lipids

Focusing in a camera is carried out by varying

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The amount of light

The distance of the lens form the film

The distance of the lens form the object

The brightness of light and speed of shutter

Bronchitis is a disease of which of the following organs?

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Blood

Bladder

Respiratory

Liver

The wire having a black plastic cover is a

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live wire

natural wire

earth wire

none of these

What substances are produced by the endocrine glands:

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endocrine glands

Cartilage

White blood cells

Hormones

Bel is a unit of:

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Atmospheric pressure

Electric current

Intensity of sound

Luminous intensity

What is URL?

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The address of the page on the World Wide Web

The title of a web site

The title memory card

None of the above

Rickets disease occurs due to the deficiency of:

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Vitamin D

Vitamin A

Vitamin C

Vitamin E

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