Water Pollution and Its Effects

Peter is camping with his family near a stream in a wooded area. During his stay in the camp he throws all the plastic waste into the stream. What is wrong with this?

Take a careful look at this picture. The girl experiences abdominal pain with diarrhea. What do you think she is suffering from?

Does groundwater pollution affect all kinds of living things?

State true or false.

Water pollution has both immediate as well as long-term effects.

A few people on a trek suffered from symptoms of vomiting and nausea after drinking untreated water from a stream. What might be the cause for such an illness?

Why does the increased level of nutrients in the water affect the survival of aquatic organisms?

Excess growth of weeds and algal bloom is called eutrophication.

Algal blooms and weeds are responsible for water pollution.

Farmers in a village have been able to increase their crop deals with the extensive use of fertilisers, insecticides and fungicides. Do you think this could also lead to problems for them? How?

Write a short note on algal bloom.

The use of biodegradable fertilizers and pesticides can help reduce water pollution.

Marble cancer is caused by water pollution.

Untreated _____ (wastewater/vehicular emissions/vermicompost) pollute water bodies adversely.

What is eutrophication? How does it affect the aquatic life?

Mention any three observations that indicate that a given sample of water is polluted.

At many places, the wastewater containing human excreta from homes and carried in big underground pipes is dumped into a river as such which pollutes the river water.
Name any five human diseases caused by drinking river water contaminated with such wastewater.

At many places, the wastewater containing human excreta from homes is carried in big underground pipes and dumped into a river as such which pollutes the river water.

Name five types of harmful organisms contained in the wastewater as referred to in the above sentence.

Which of the following disease cannot be caused by drinking river water contaminated with untreated sewage?

The use of excessive fertilizers in the fields leads to the deficiency of an important substance in the water of a nearby lake. Name the substance (write in one word)