Water Availability (Grade 11 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
By 2050, how many people are estimated to lack access to clean, safe water supplies?
By 2050, how many people are estimated to lack access to clean, safe water supplies?
Almost 2 billion people
What was the approximate global water consumption in 1900?
What was the approximate global water consumption in 1900?
500 billion cubic metres
What is an aquifer?
What is an aquifer?
Underground water-bearing, sponge-like rock
Which is NOT a purpose for constructing dams?
Which is NOT a purpose for constructing dams?
Increasing natural fish migration
What function do wetlands provide as 'natural sponges'?
What function do wetlands provide as 'natural sponges'?
Store rainwater & release it slowly
Why do alien plant species like wattles and gums deplete water availability?
Why do alien plant species like wattles and gums deplete water availability?
They are extremely water-hungry species
What percentage of urban water supplies is lost through leaking pipes and faulty infrastructure?
What percentage of urban water supplies is lost through leaking pipes and faulty infrastructure?
Approximately 40%
How much free water does the 'Water for all' policy provide monthly for families of five?
How much free water does the 'Water for all' policy provide monthly for families of five?
6 kilolitres per month
What does overgrazing by livestock cause that reduces water availability?
What does overgrazing by livestock cause that reduces water availability?
Soil erosion leading to faster runoff
How are most regions of South Africa classified in terms of climate?
How are most regions of South Africa classified in terms of climate?
Arid or semi-arid