Effect of Water Pollution on Plants and Animals

Q.

Based on the information given below classify each of the situations as ‘suffering from water scarcity’ or ‘not suffering from water scarcity’. (a) A region with high annual rainfall. (b) A region having high annual rainfall and large population. (c) A region having high annual rainfall but water is highly polluted. (d) A region having low rainfall and low population.

Q. What is eutrophication?

Q.

Write a short note on Water Scarcity for Students.

Q.

Appu’s friend Anu comes from a village that lies on the banks of the Ganga river in Bihar. Despite having abundant water in the river throughout the year, Anu says that there is always a water shortage. Which of the following could be a reason for the water shortage in her village?

1. Anu’s village believes that the river’s water is unholy.

2. Anu’s village is not allowed to use the water by the government.

3. The river is polluted.

4. Anu’s village is too far from the river bank.

Q. Statement I: Diarrhoea can cause death.
Statement II: Drinking polluted water can cause diarrhoeal diseases.

1. Statement I is true but II is false
2. Statement I is false but II is true
3. Statements I and II are true
4. Statements I and II are false

Q. Dumping untreated sewage into water leads to:

1. water conservation
2. air contamination
3. water contamination
4. water filtration

Q.

Tungabhadra Is The Tributary Of Which River?

Q. Dysentery and cholera are caused by drinking polluted water.

1. True
2. False

Q. The headlines of a local newspaper read the following:

• River Life Ceased
• Widespread Destruction of Crops
• Taj Mahal Loses Its Shine

What could be the common cause for these tragedies?

1. The industrial effluents were dumped into water bodies without treatment.
2. Sulphur dioxide and nitrogen dioxide combined with water and came down as acid rain.
3. Combustion of wastes resulting in high carbon dioxide content in the atmosphere.
4. Usage of harmful pesticides carelessly.

Q. The image given below shows a pond situated near an apple farm.
What could be the possible reason for death of fishes in the pond?

1. The waste products given out by the plants.
2. The practice of crop rotation in the farm.
3. The use of biological control in the farm.
4. The use of chemical fertilisers in the farm.

Q. Match the following wastes with respect to its source.

1. Soaps and detergents
2. Scrap metals and ash
3. Vegetables
4. Fertilisers

Q. Jaundice, diarrhoea etc., are caused due to the consumption of impure water.

1. True
2. False

Q. ______ is the consequence of eutrophication.

1. Aeration
2. RSPM
3. Algal bloom
4. Biomagnification

Q. Which river in Tamil Nadu is termed as 'Puzzar'?

1. Kaveri
2. Palar
3. Vaigai
4. Bhavani

Q. Which of the following is a cause of water scarcity?

1. Extreme weather conditions
2. Over consumption of water
3. Lack of infrastructure to access water
4. Water pollution

Q.

Identify the foul practices which leads to the pollution of river Ganga.

1. Throwing large quantities of garbage

2. Pushing untreated sewage

3. Cremation of dead bodies

4. Taking bath on the river banks

Q. What causes eutrophication in water bodies?

1. Excess amount of oil spilling into the water body.
2. Excess amount of fertilisers getting drained into water.
3. Change in the pH level of water.
4. Decreased level of oxygen.

Q. ______ is the consequence of eutrophication.

1. Biomagnification
2. Algal bloom
3. RSPM
4. Aeration

Q. Which of the following ailments cannot be caused by drinking contaminated water?

1. Hepatitis
2. Bone deformity
3. Typhoid
4. Tuberculosis

Q.

Contamination of rivers like Ganga leads to:

1. Detoriation of water quality

2. Death of aquatic life

3. Acidic soil

4. Diseases

Q.

Which of the following statement(s) is/are false with regards to excessive usage of fertilisers?

1. They are eco-friendly.
2. They improve the quality of groundwater.
3. They adversely affect the useful component of the soil.
4. They reduce the self regeneration capacity of the soil.

Q. The image given below shows a pond situated near an apple farm.
What could be the possible reason for death of fishes in the pond?

1. The waste products given out by the plants.
2. The practice of crop rotation in the farm.
3. The use of biological control in the farm.
4. The use of chemical fertilisers in the farm.