Polluted water bodies have usually very high abundance of plants like Nostoc and Oscillitroia. Give reasons.

Polluted water bodies have usually very high abundance of plants like Nostoc and Oscillitoria. Give reasons.

Polluted water bodies have usually very high abundance of plants like Nostoc and Oscillitoria. Give reasons.

Polluted water bodies have usually very high abundance of plants like Nostoc and Oscillatoria. Give reasons.

Polluted water bodies have usually high abundance of plants like Nostoc and Oscillatoria. Give reasons.

Transition metals are very hard and have high melting and boiling points. Give reason.

Metals have high thermal conductivity. Give reason.

During summer season, a milkman usually adds a very small amount of baking soda to fresh milk. Give one reasons.

A water body characterized by nutrient rich water supports abundant growth of phytoplankton 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 statement is correct?