A change in weather is likely coming if a barometer shows a change in air pressure. Option A is correct.
Air pressure determines wind and weather patterns across the planet. Air pressure also known as amospheric pressure is the force per unit of area exerted on the Earth’s surface by the weight of the air above the surface. The force exerted by an air mass is created by the molecules that make it up and their size, motion, and number present in the air.
