Advertisements
Advertisements
प्रश्न
State and explain two ways by which air gets polluted in nature.
Advertisements
उत्तर
Air gets polluted in nature by following ways :
- During forest fire, a large amount of carbon particles (smoke) and carbon-monoxide pollute the air.
- When volcanoes erupt, a huge amount of ash and sulphur-dioxide is added in the air as pollutants.
APPEARS IN
संबंधित प्रश्न
Define the term acid rain.
Fill in the blank by choosing the correct word from the given list.
List: oxygen, carbonic, suIphur dioxide gas, precipitation, helium
____________ gas can cause acid rain.
What happens when potassium nitrate is heated ?
What happens when Sodium burns in oxygen ? Also give the balanced chemical equation for the reaction.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
To prevent rusting, the underside of the ships is coated with __________________.
Write fully balanced equation for the following :
MgO + H2O →
Describe simple experiments to show the presence of -
water vapour in air using a glass tumbler and ice.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Name the catalyst used in the preparation and state it’s function.
Name the following:
The pollutant which combines with water vapour to give sulphuric acid – a product of acid rain.
A process without emitting flame is called as ______.
