$A$ pollutant is an agent which causes change in

$A$: Ecological sanitation is a sustainable system for handling human excreta.
$R$: It is a practical and hygienic method of using dry composting toilets.

Describe the integrated wastewater treatment project in the town of Arcata,California.

In which year did the Government of India introduce the concept of Joint Forest Management $(JFM)$?

Jhum cultivation:
$I.$ Also called as slash and burn agriculture,is the farming practice in North Eastern states of India.
$II.$ Farmers cut down the trees of forest and burn the plant remains.
$III.$ The ash is used as a fertilizer and the land is then used for farming or cattle grazing.
$IV.$ After cultivation,the land is left for several years,so as to allow its recovery.
Which of the statements given above are correct about Jhum cultivation?

Which one of the following statements is incorrect in the case of the Bhopal tragedy?