Pollution And C...

Bio-magnification is the process, in which

The reading on Richter scale above which mark can severe damage

Which of the following action is environment friendly to reduce pollution            

(i) Use of unleaded petrol in vehicles
(ii) Use of pesticides and insecticides in plants
(iii) Using sewer treatment plant
(iv) Restricting smoking in public to designated space

Which of the following is not a pollutant?

The liquid which comes out of an active volcano is called

Two table of biodegradable and non-biodegradable are listed below. After reading the table, Ramesh has made some references. Which of them is correct?

There many natural process which brings changes on surface of the earth. Which of the following process would bring the slowest change on earth surface?

Presence of undesirable substances in water is called

Toxic chemicals in soil can harm by

Which of the following statement is correct?