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Global Environmental Issues and Water Treatment Quiz

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Questions and Answers

What is the main purpose of water fluoridation?

To reduce the risk of water-related diseases
To increase the fluoride concentration in water above WHO recommended levels
To prevent tooth decay, especially in children and low-income individuals (correct)
To improve the taste and odor of drinking water

What is a concern associated with water fluoridation?

It leads to a reduction in natural fluoride levels
It causes immediate adverse health effects in the population
The research supporting its benefits is not high quality (correct)
It has no impact on preventing tooth decay

Why is excess fluoride consumption a concern?

It has no impact on dental health
It leads to a reduction in water shortages
It is essential for overall health
It is associated with dental fluorosis (correct)

What is the final step in the treatment of water according to the text?

Disinfection (with chlorine) (D) Signup and view all the answers

What percentage of the global population is predicted to face water shortages by 2025?

30% (C) Signup and view all the answers

What percentage of the global population uses an improved drinking water source according to the Joint Monitoring Programme (JMP) 2015 data?

91% (D) Signup and view all the answers

How many people globally are without access to improved drinking water according to the JMP 2015 data?

663 million (B) Signup and view all the answers

In which regions do 8 out of 10 people without improved drinking water sources mainly live, based on the JMP 2015 data?

Sub-Saharan Africa and Asia (D) Signup and view all the answers

What is the projected impact of climate change on water supply in Bahrain by 2025?

More water shortages due to increased consumption and decreased groundwater supply (A) Signup and view all the answers

What are the primary steps involved in the treatment of water according to the text?

Coagulation, Flocculation, Sedimentation, Filtration, Disinfection (C) Signup and view all the answers

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