Many people will pass away from age, getting old is a common way of how people will pass away.
Unexpected accidents, you can't control accidents. Many people will pass away from an unexpected accident that happens really often in the world.
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Ou of these options 50% 25 % 6.25%<span> 2% </span><span>0.39%. The answer is 25%</span>
1. To prevent drought because South Africa is considered one of the 30 driest countries in the world.
2. To store rainfall (to prevent drought).
3. Dams change daily flows by releasing water as a reaction to demands for irrigation, energy, etc.