Question # 1

The main causes of depletion of ozone layer is

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oxygen

hydrogen

chlorofluorocarbon

hydrocarbon

Pencilin wax discovered by.

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Robert Brown

Sir Alexander Flemig and Howard Florey

Edward Jonner

Robert Hooke

Digestion of proteins starts in.

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Mouth

Alimentary canal

Small intestine

Stomach

The compounds consisting of Amino acids are called

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carbohydrate

Fast

Proteins

organic compounds

Thread worms are lay egg around.

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Anus

Liver

Kidney

All of them

The thickness of Atmosphere is

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100 km

200 km

300 km

400 km

Genetic information is transerred by.

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Nucleus

Chromosomes

Genes

Gametes

The deficiency of vitamin D causes

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Scurvy

T.B

Rickets

Anemia

The compound which is required in very small amonut is.

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Carbohydrate

Protein

Fats

Vitamins

Coke is formed in the absence of..........

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Carbon

Oxygen

Air

Hydrogen

Mu Aw Homus translated nine books of Jabir Bin Hayan language.

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Greek

Latin

Persian

French

The height of troposphere above earth's surface is

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10 km

18 km

20 km

40 km

The percentage of nitrogen in air is

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76%

77%

78%

79%

At present population is 2.6 percent, in how many years the population of Pakistan will double.

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47 years

37 years

27 years

17 years

The percentage of oxygen in Air is

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78%

21%

0.04%

33%

The age of child in whihc the child is injected wiht measles is.

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At birth

First month

3rd month

9th month

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