Description : Which of the following is the cleanest source of energy? (1) Biofuel (2) Fossil fuel (3) Nuclear power (4) Wind energy
Last Answer : (4) Wind energy Explanation: Solar, wind and hydro power are examples of cleanest energy sources. According to a new US study, Greenhouse gases produced over the lifetime of a wind turbine ... clean, fuel-free source of energy, wind turbines create energy without generating the damaging pollutants.