$A$ plastic sack manufacturer in Bangalore found an ideal solution to the ever-increasing problem of plastic waste. Identify this person.

Assertion: Eutrophication shows an increase in productivity in water.
Reason: With increasing eutrophication,the diversity of the phytoplankton increases.

$5^{th}$ June is celebrated as.....

Which of the following statements is/are correct?
$I.$ Chemical fertilizers cause pollution of water bodies as well as groundwater,besides getting stored in crop plants. Therefore,environmental scientists are pressing for a switch over to organic farming.
$II.$ Organic farming is a form of agriculture that relies on techniques such as crop rotation,green manure,compost,and biological pest control.

In Arcata,the integrated wastewater treatment was developed by creating a series of $6$ connected marshes. Its function is $............$

The Government of India has introduced a concept to work closely with local communities for the protection and management of forests,which is called: