A. Because when you exercise your heart rate increases due to more demand of oxygen during exercise. Compared to when you are sitting your heart rate is at resting because you are not doing anything that requires a demand of oxygen other than breathing
On a sunny day, a black leather car seat would be hotter than a tan cloth seat.
To reduce heat in a parked car on a sunny day, foil shields can be placed against its windshield. Foil has a reflective surface, so sunlight bounces off instead of being absorbed.
