Advertisements
Advertisements
Question
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
Advertisements
Solution
Pollution of air by humans can be minimised in the following manner :
- In the thermal power plants, steel plants etc., electric precipitators should be used to reduce the smoke and ash entering the air.
- Efficient internal combustion engines should be used in vehicles.
- Improved chulha or stoves should be used to minimise the production of smoke and carbon-monoxide.
- We must grow more trees as they absorb harmful gases.
APPEARS IN
RELATED QUESTIONS
State three uses of water vapour in the air.
Briefly state the importance of Water vapour.
Name three noble gases present in the air. State their one industrial use
Write fully balanced equation for the following :
CO2 + H2O →
Write down the composition of three main gases present in air by volume.
With the help of a labeled diagram, describe a simple experiment to show the presence of oxygen and nitrogen in air using a piece of white phosphorus.
State the utility of oxygen for respiration in plants
Complete the statement given below by filling in the blank with the correct word from the words given:
The product formed which is common to both combustion and respiration is ______.
______ is the active component of air.
______ present in the air is needed for respiration.
