Question # 1

The solid particle deposit on the filter paper during filtratin is called.

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Precipitates

Residue

Crystals

All of them

Which is not a poisonous gas?

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Ozone

Chlorine

Carbon di oxide

All of them

The percentage of SO₂released by the combustion of coal and petroleum product.

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40%

60%

70%

80%

___________ is not green house effect.

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Increase of food chain

increase atmospheric pressure

Increase of sea level

Increase of flood risks

Normal rain water is:

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weakly acidic

strongly acidic

weakly basic

strongly basic

Which is not a character of SO₂

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it is a colourless gas

It has irritating smell

It causes suffocation

It do not form sulphuric acid

Global warming causes rising of the sea level. The cause of global warming is.

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CO₂ gas.

SO₂gas.

NO₂gases.

O₃gas.

Which one of the following is not a greenhouse Effect?

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Increasing atmosphere temperature.

Increasing food chains

increasing flood risks

Increasing sea-level

99% of atmosphere consists of .

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N₂and H₂

N₂and O₂

N₂and CO₂

O₂and CO₂

Which gas is produce by the electrical lightening of air.

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NO

SO₂

SO₃

CO₂

About 99% atmosphere's lies within:

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30 kilometre

35 kilometre

15kilometre

11 kilometre

Cause of global warming is:

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CO₂gas

SO₂gas

NO₂gas

O₂gas

In the troposphere (lowest layer), the temperature decreases form 17°C to;

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-58°C

-93°C

-61°C

-49°C

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