A landfill was reclaimed and sturdy plants were grown on it instead of crops or fruit trees. Why?

Give the impact of radiations on human body.

Crude oil from a refinery has leaked into the Kosasthalaiyar river (north of Chennai), the biodiverse Ennore creek (where many migratory birds come) and the Bay of Bengal. This has caused pollution. List what all could have been impacted and how?

State briefly how is noise pollution detrimental to human health.