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

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

Open Ended

What do you learn from this lesson?