Answer:
The correct answers are options B and C, that is, it pushes on all the objects that are on the surface of the Earth, and it can be measured in kilopascals or atmospheres.
Step-by-step explanation:
The atmospheric pressure or the barometric pressure refers to the pressure found inside the Earth's atmosphere. With the increasing height, the atmospheric pressure decreases. In meteorology, the barometer is an instrument, which is used to find the atmospheric pressure. Atm or atmospheric pressure is the force per unit region by the weight of air above that location, and kPa or kilopascal refers to a metric system pressure unit, which is equivalent to 1000 force of Newton per square meter.