Table of Contents
What are the disadvantages of water pollution?
Destroys life in the water based ecosystem which is polluted which in turn disrupts natural food chain. Aquatic life is destroyed due to the non-biodegradable pesticides and chemicals. Water pollution affects the microbial population. There is a steep increase in the BOD levels of water.
How does hydroelectricity affect humans?
Hydropower does not pollute the water or the air. However, hydropower facilities can have large environmental impacts by changing the environment and affecting land use, homes, and natural habitats in the dam area. Most hydroelectric power plants have a dam and a reservoir.
What are the effects of water pollution class 9?
Pathogens(viruses,bacteria,fungi,protozoa etc)are biological pollutants of water. They cause typhoid,cholera,dysentery,jaundice,hepatitis. 2)Removal of desirable substance from water bodies: With increase in the amount of organic waste the bacteria multiply rapidly and use up the available oxygen.
What is water pollution give its causes and harmful effects Class 9?
Water bodies in the vicinity of urban areas are extremely polluted. This is the result of dumping garbage and toxic chemicals by industrial and commercial establishments. Water pollution drastically affects aquatic life. It affects their metabolism, behaviour, causes illness and eventual death.
Does hydropower create pollution?
Hydropower and the Environment Hydropower does not pollute the water or the air. However, hydropower facilities can have large environmental impacts by changing the environment and affecting land use, homes, and natural habitats in the dam area.
Does hydropower produce greenhouse gases?
While hydropower is a potentially clean source of renewable energy, some projects produce high greenhouse gas (GHG) emissions per unit electricity generated (carbon intensity).
Where is water pollution happening the most?
India
What are 4 effects of water pollution?
The main problem caused by water pollution is that it kills organisms that depend on these water bodies. Dead fish, crabs, birds and seagulls, dolphins, and many other animals often wind up on beaches, killed by pollutants in their habitat (living environment). Pollution disrupts the natural food chain as well.