Which of these measures could reduce the effects of urbanization? (a)tarred roads (b)tropospheric ozone (c)eutrophication (d)urban heat island effect (e)solar powered equipment

(E)solar powered equipment

Explanation:

(A)tarred roads

Most urban centers already tarred roads, so this would do nothing to reduce the effects of urbanization.

(B)tropospheric ozone

This is the gas of the throposphere. When it's concentration is very high, it leads to smog. So it does not reduce the effects of urbanization.

(C)eutrophication

Excessive growing of acquatic plants. Has nothing to do with urbanization.

(D)urban heat island effect

Basically, it means that it is hotter in the urban areas than the rural ones. It does not help reduce the effects of urbanization.

(E)solar powered equipment

Solar energy is a renowable source of energy. So yes, it leads to less pollution, which alliviates the effects of urbanization. So the correct answer is E.