Save the Environment, Say No to Pollution (Lesson 2)

BIOLOGY LESSON WITH INVISIBLE THAM SIR

Lesson 2

Multiple Choice

What disease is caused by contaminated water?

• COVID-19

• Dengue fever

• Cholera

• Tuberculosis

Multiple Choice

What are the pollutants that lead to the Kim Kim River incident?

• Inorganic fertilisers

• Chemical wastes

• Animal wastes

• Domestic rubbish

Multiple Choice

To improve the quality of water bodies, we should .....

• Buy expensive household products

• Dispose chemicals down the sink

• Use biodegradable household products

• Dispose chemical down flushing toilet

Fill in the Blanks

What is the alternative of inorganic fertilisers in order to reduce the level of water pollution?

Multiple Choice

Which of the following is NOT of step of water treatment?

• Screening

• Disinfectant

• Nutrients removal

• Fractional distillation

Multiple Choice

Floating litter trap is crucial to ......

• Save aquatic life

• Prevent flash flood

• Reduce the flow of chemicals to water bodies

• All of the above

Fill in the Blanks

Oil spillage from maritime vehicles can be solved by using

fuel cell to generate electricity.

Open Ended

What do you learn from this lesson?