A process used to treat contaminated media including water,soil and sub surface is called (A) waste treatment (B) bioremediation (C) biofortification (D) biomagnification

A water body characterized by nutrient rich water supports abundant growth of phytoplanktons and other water plants on its surface. Over time, the water body gets filled with a large number of such plants and the process is called Eutrophication. In such water bodies, dissolved oxygen content is nil or very less. Which of the following steps are used to treat industrial wastes and reduce pollution? (i) Recycle the wastes (ii) Discharge the wastes into the sea (iii) Treat and neutralise harmful chemicals in the wastes

Select the correct statement . (A) use of incinerators is crucial to the disposal of hospital waste . (B) Recycling is the only solution for the treatment of e-waste . (C) Fish-eating birds containing 2 ppm DDT become agents of biomagnifications. (D) polyblend is a fine powder of bitumen .

Microbial fuel cells are considered a source of sustainable energy. Why? 1. They use living organisms as catalysts to generate electricity from certain substrates. 2. They use a variety of inorganic materials as sub strates. 3. They can be installed in waste water treatment plants to cleanse water and produce electricity. Which of the Statements given above is/are correct? (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

People used to travel because of A. employment and education. B. to mitigate disaster. C. for treatment of disease. D. to enjoy