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Question
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The percentage of carbon dioxide in the air is between 0.2 to 0.4%.
Options
True
False
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Solution
This statement is False.
RELATED QUESTIONS
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
_______ gas is used for filling weather observation balloons.
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
State the utility of oxygen for respiration in living organisms
Name three different appliances where air is utilized.
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
Inhaled air contains a large amount of carbon-di-oxide.
Write about the reaction of nitrogen with non metals.
The second major component of air is oxygen.
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
- Bubbles of air came out from the bottle.
- Some water entered the bottle.
- Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
- No bubbles formed, only water entered the bottle.
Which observations is/are correct?
