Multiple choice How many people die every week from diseases caused by unsafe water? around 10 000 around 20 000 around 30 000 around 40 000 Reveal answer Fill a bubble to check yourself C Correct answer Explanation Unsafe water, sanitation, and hygiene cause approximately 1.5 to 2 million deaths annually, which translates to roughly 30,000 deaths every week. Children under five in developing countries are the most severely affected by waterborne diseases.