What is exothermic reaction ? is there any Indian who learning in class 10 th like to me became a good friend ,

yes

I'm indian

also in 10th class!

yess I am in 10th

Explanation:

a reaction in which energy is released in the form of light or heat is called as exothermic reaction.

hope it helps

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.