Advertisements
Advertisements
प्रश्न
What are the sources of dissolved oxygen in water?
उत्तर
The oxygen reaches water through the atmosphere or by the process of photosynthesis carried out by green plants during daytime. But, during night as photosynthesis stops, the plants continue to respire, resulting in the reduction of dissolved oxygen. This dissolved oxygen is even used by microorganisms to oxidize organic matter. The sources of dissolved oxygen in water can be
(i) Photosynthesis by aquatic plants.
(ii) Due to the direct contact of the water surface with air.
(iii) Mechanical aeration.
APPEARS IN
संबंधित प्रश्न
Define environmental chemistry.
Which one of the following is the cause of acid rain?
What is the main source of pollution?
River Ganga flows through which of the following states?
Name the anthropogenic sources of water pollution.
Which of the following is not the source of noise pollution?
How can you apply green chemistry for the following:
To reduce the consumption of petrol and diesel.
Which of the following is a natural source of air pollution?
Which of these activities are the most significant contributor to water pollution?
Which of the following is the largest contributor to water pollution in India?
