Threats to the Hydrosphere and Water Purity (Grade 10 NSC Matric Physical Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What determines whether a chemical becomes a water pollutant?
What determines whether a chemical becomes a water pollutant?
Whether it's present in harmful amounts
What is excessive plant growth caused by fertiliser runoff called?
What is excessive plant growth caused by fertiliser runoff called?
Eutrophication
Which toxic trace elements mainly come from mining and industrial activities?
Which toxic trace elements mainly come from mining and industrial activities?
Aluminium, mercury, and copper
When will South Africa's water supplies fail to meet growing demand?
When will South Africa's water supplies fail to meet growing demand?
Between 2020 and 2040
What is the most sustainable solution to water shortages?
What is the most sustainable solution to water shortages?
Reduce water demand
What pH value indicates neutral water?
What pH value indicates neutral water?
Why is chlorine added to water supplies?
Why is chlorine added to water supplies?
To remove harmful bacteria
What does flocculation do in water treatment?
What does flocculation do in water treatment?
Helps particles clump for easy removal
What can be concluded about clear water?
What can be concluded about clear water?
It doesn't necessarily mean pure water
Which factors contribute to increasing water demand?
Which factors contribute to increasing water demand?
Population, industry, and agriculture