Damaging effect of sewage dumps into natural water sources
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Sewage dumps are nothing but sewage wastes that gets collected in the main sewer . To empty the main sewer , this dumps are often passed onto the nearby natural water sources . This causes harm to the aquatic plants and animals . Sewage dumps are not organic wastes and hence carries harmful chemicals which causes death of many aquatic animals including fish . It also pollutes the water making it non potable . Fresh water level is getting depleted day by day . Hence water pollution should be stopped immediately , to let the ecosystem maintain its balance so that humans also can lead a healthy life .

Explanation:

kopi gareko hehehe

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

real, smaller and upside-down.   so the answer should be b.