Mike was taking part in an ecological event where he has been asked about the environmental effects of cars. Choose the correct words to complete his answers.
Choose the correct option.
Mike, 17
Cars are bad for the [natural|naturally|nature] environment because they use fossil fuels that emit carbon smoke. This smoke pollutes the air, contributes to global warming, and causes traffic congestion on roads. Electric cars are less [harmful|harms|harm] because they do not emit carbon smoke. However, the power plants that [produce|producer|production] electricity for these electric cars use fossil fuels (oil and coal), so they are heavy polluters, too. The [solution|solving|solve] is to shift the energy sources from carbon-based to renewable energy sources, such as solar energy.