Water Pollution 2 - JSS1 Physical and Health Education Past Questions and Answers - page 2
What is the primary purpose of water purification?
To make water dirty
To make water unsafe for use
To make water clean and safe for use
To turn water into ice
Which method involves passing water through a physical barrier?
Chemical Treatment
Distillation
Filtration
UV Disinfection
What is the main benefit of UV disinfection?
Removing sediments from water
Killing microorganisms in water
Adding nutrients to water
Making water colder
Can you name one method used for water purification?
Boiling, Filtration, Chemical Treatment, Distillation, Reverse Osmosis, UV Disinfection
How does filtration help in purifying water?
Filtration helps by passing water through a physical barrier or filter, trapping particles, sediments, and some microorganisms.
What are some common chemicals used in water purification?
Chlorine, iodine, ozone
Why is water purification important?
Water purification is important to make water clean and safe for drinking or other uses by removing impurities, contaminants, and pollutants, thus preventing health risks and ensuring environmental safety.