The prime contaminants of sewage water which act as plant nutrient are

(1) Nitrates and Phosphates

(2) Phosphates

(3) Nitrates, DDT

(4) Cadmium and DDT

(1) Eliminates or reduces the number of organisms sensitive to high temperature

(2) May enhance the growth of plants and fish in extremely cold areas

(3) Cause damage to the indigenous flora and fauna

(4) All of these

(1) By utilising only artificial processes

(2) By utilising only natural processes

(3) By utilising both artificial and natural processes

(4) By utilising advanced and more expensive means

(1) The town of Arcata along northern coast of California and biologist of Humboldt State University

(2) The town of Bangalore and biologist of Humboldt State University

(3) The town of New York along northern coast of California and biologist of Purdue University

(4) The town of Arcata along northern coast of California and biologist Purdue University

(1) The conventional sedimentation, filtering and chlorine treatment were performed in first stage

(2) To remove dissolved heavy metal the biologist developed a series of 10 connected marshes

(3) Only bacteria were seeded here in marshland

(4) All of these

(1) 6 Marshlands of 60 hectares

(2) Appropriate plants, algae, fungi and bacteria were seeded into this marshland

(3) Such arrangements actually neutralize, absorb and assimilate the pollutants

(4) All of these

(1) A citizens group called Friends of Arcata Marsh, India

(2) Responsible for the upkeep and safeguarding of integrated waste water management project of Arcata

(3) Comes under Government of India

(4) All of these

(1) Sanctuary with a high level of biodiversity in the form of fishes, animals and birds

(2) Appropriate plants, algae, bacteria neutralize, absorb and assimilate the pollutants

(3) Both A and B

(4) Act as ecological sanitation

(1) Using dry composting toilets

(2) Recycling human excreta into resource as a natural fertilizer

(3) Both A and B

(4) Using toilets which have a connection to the sewage