There are seven distinct pressure belts on Earth. These include one Equatorial Low-Pressure Belt, two Subtropical High-Pressure Belts (30° N/S), two Subpolar Low-Pressure Belts (60° N/S) and two Polar High-Pressure Belts at the poles. These belts are the result of unequal solar heating and the Earth’s rotation, forming the global circulation system. ANSWER: (A) 7