Pollutants : A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.
Some chemical pollutants are :
Chlorofluorocarbons (CFCs) : Chlorofluorocarbons are the compounds containing carbon, chlorine and fluorine. These compounds are used as an insulating material in air conditioners and refrigerators. Chlorofluorocarbons are also used in shaving foam and cleaning agent. These chemical compounds (CFCs) react with the ozone gas and leads to the depletion of the ozone layer and formation of holes in it.
Lead : When petrol is burnt in automobiles it releases lead as a pollutant which is absorbed by our body. It is poisonous and can damage our brain, liver and kidneys.
Ground level Ozone : Ozone damages vegetation and ecosystem by inhibiting the ability of plants to open the microscopic pores on their leaves to breathe. It interferes the process of photosynthesis by reducing the amount of carbon dioxide the plants can process and release as oxygen.
The pollutants which are used in refrigerators, air conditioners and aerosol spray are _________________ | |||
Right Option : A | |||
View Explanation |
___________ can end up in water and soils through corrosion of leaded pipelines in a water transporting system. | |||
Right Option : A | |||
View Explanation |
The compound responsible for acid rain is ____________________. | |||
Right Option : C | |||
View Explanation |
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
It was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Being a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.