Advertisements
Advertisements
Question
What is pollution?
Solution
Unwanted change in physical, chemical, and biological properties of the environment. This is termed pollution.
APPEARS IN
RELATED QUESTIONS
Burning of matchstick is an example for chemical reaction caused by _______
Which of the following factor induces electrtolysis?
In Haber’s process of producing ammonia _______ is used as a catalyst.
Iron objects undergo rusting when exposed to _______ and _______.
Electrolysis of brine solution gives _______ gases.
Decomposition of lead nitrate is an example for a chemical reaction caused by light.
Formation of slaked lime from quicklime is an endothermic reaction.
Light energy may come out due to chemical reactions.
Palanikumar is a Lawyer. He lives in a luxurious flat. Due to high rent, he wants to shift his residence to a place where he has a chemical industry nearby. There the rent is very cheap and the area is less populated also. His son Rajasekar, studying VIII, does not like this and likes to go to some other place.
- Is Rajasekar right in his attitude?
- Why did he refuse to go there?
- What are the values shown by Rajasekar?
Name the nitrate which does not produce brown gas on heating?
