You are driving a motor vehicle with a manual gearbox. What type of behaviour pollutes the environment?

Your selections are correct. Both an uneven driving style and frequently pressing the accelerator while waiting at traffic lights contribute to unnecessary environmental pollution. An uneven driving style, such as frequent acceleration and braking, increases fuel consumption and emissions. Pressing the accelerator while stationary also burns extra fuel and emits more pollutants without any benefit, further harming the environment. Understanding this helps you drive more efficiently and environmentally friendly by maintaining smooth driving and avoiding unnecessary engine revving. Driving downhill in a high gear, however, does not significantly increase pollution—in fact, in modern cars, higher gears at low engine speeds can even reduce fuel use.