Advertisements
Advertisements
Question
Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain ______.
Options
water vapour
only oxygen gas
air
none of these
Advertisements
Solution
Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain air.
Explanation:
When Usha poured water on the lump of soil, the air trapped in it got displaced and air bubbles were formed.
APPEARS IN
RELATED QUESTIONS
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
Tick (√) the most appropriate answer.
The humans pollute the air by :
What do you understand by the term polluted air?
Classify Carbon dioxide. Also give a balanced equation to prepare it.
Classify Carbon monoxide. Also give a balanced equation to prepare it.
State the utility of oxygen for respiration in plants
State a reason why there is a balance in the amount of carbon dioxide in the air, even though carbon dioxide is released into the atmopshere by various processes.
Which of the following is true about oxygen?
Aerated water contains
When air is moving with cool and soothing, it is called a cyclone.
