Advertisements
Advertisements
प्रश्न
When water is heated, we see bubbles rising up. Why?
Advertisements
उत्तर
Water has a lot of air dissolved on it. This is what allows breathing to fishes and other aquatic beings. The solubility of gases decreases when the temperature is raised, and that is why the dissolved air bubbles out from the water.
APPEARS IN
संबंधित प्रश्न
How are clouds formed?
We often leave the lights switched on and fans running when we are not in the room. We switch on the air-conditioning even though we don’t really need it. We insist on being dropped to school in the car every day. Thus, we waste valuable energy which is generally produced by burning coal and petroleum. As you know, the burning of these fuels release gases that pollute the atmosphere.
Make a list of the similar things that we do without realizing that we are destroying the environment. Think of the ways that we can behave differently.
Fill in the blank:
The ozone layer protects us from the _____________ of the sun.
Write True or False.
The ozone layer is harmful to humans and animals.
Explain the significance of the earth’s atmosphere.
__________ is the great circle at the centre of the earth.
What is atmosphere?
Why is atmosphere essential for life on earth?
The uppermost layer of the atmosphere is ______.
The two forms of oxygen found in the atmosphere are
