What measures help protect the environment?

Your answer is correct because low-resistance tyres and low viscosity engine oil both help reduce fuel consumption, which in turn lowers pollutant emissions and conserves energy. Low-resistance tyres improve rolling efficiency while driving, and low viscosity engine oil reduces friction inside the engine. In contrast, air-conditioning systems generally increase fuel use and emissions, so they do not help protect the environment. Remember, environmentally friendly driving choices focus on reducing energy waste and emissions.