Q2) Write definitions of following
1) Pollution -
2) Acid rain -question answer
Answers
Answer:
harmful gases present in the atmosphere is called pollution
the rain falling on the earth mix with dust particles and harmful gases is called acid rain
Answer:
1) Pollution is the process of making land, water, air or other parts of the environment dirty and not safe or suitable to use.
Three main types of pollution as follows...
•Land pollution
Land can become polluted by household garbage and by industrial waste.
•Water pollution
Water pollution happens when chemicals or dangerous foreign substances are introduced to water, including chemicals, sewage, pesticides and fertilizers from agricultural runoff, or metals like lead or mercury.
•Air pollution
The air we breathe has a very exact chemical composition; 99% of it is made up of nitrogen, oxygen, water vapor and inert gases. Air pollution occurs when things that aren't normally there are added to the air. A common type of air pollution happens when people release particles into the air from burning fuels. This pollution looks like soot, containing millions of tiny particles, floating in the air.
2) Acid rain, or acid deposition, is a broad term that includes any form of precipitation that contains acidic components, such as sulfuric acid or nitric acid.
•A chemical reaction happens when sulfur dioxide and nitrogen oxides mix with water, oxygen and other chemicals in the air. They then become sulfuric and nitric acids that mix with precipitation and fall to the ground....
This is how guys acid rains take place
Hope you are satisfied with my answer ....I tried to cover all.