Arnold is concerned about his impact on the environment. currently he drives a car that gets only 12 miles per gallon of gas. which of the following actions would be the most effective to lessen his environmental impact?

Plz asap can someone find the answer or the mark scheme or anything plzzz you : ) ‘it's perfectly understandable that hundreds of millions of people around the world live close to volcanoes’ use evidence to support this statement. (6 marks)