What is a significant advantage of using hand pumps over traditional bucket and rope methods?
Why do hand pumps have a shorter lifespan compared to solar pumps?
How many people worldwide lack access to safe water supplies?
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Q: What is a significant advantage of using hand pumps over traditional bucket and rope methods?
A: Lower maintenance costs
Q: What is a significant advantage of using hand pumps over traditional bucket and rope methods?
A: Longer lifespan
Q: What is a significant advantage of using hand pumps over traditional bucket and rope methods?
A: Prevents water contamination
Q: Why do hand pumps have a shorter lifespan compared to solar pumps?
A: They have more moving parts that may break down.
Q: Why do hand pumps have a shorter lifespan compared to solar pumps?
A: They are more expensive to manufacture.
Q: Why do hand pumps have a shorter lifespan compared to solar pumps?
A: They are not properly sealed to prevent contamination.
Q: How many people worldwide lack access to safe water supplies?
A: 27 million
Q: How many people worldwide lack access to safe water supplies?
A: 155 million
Q: How many people worldwide lack access to safe water supplies?
A: 884 million