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Chemistry

Chemistry
Besides CO2, the other green house gas is

Ar Ar
N2 N2
O2
CH4

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Chemistry
What is the atomic number of mercury

80
41
32
63

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Chemistry
The drug ‘Marijuana’ is a

Mental stimulant
Sedative
Tranquillizer
Hallucinating substance

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Chemistry
Depletion of ozone layer causes

Skin cancer
Blood cancer
Lung cancer
Breast cancer

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Chemistry
Isobars are lines joining places having equal

Population
Pressure
Height above sea-level
Rainfall

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Chemistry
The smog is essentially caused by the presence of

O3 and N2
Oxides of N and S
O2 and O3
O2 and N2

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