Which statement best describes a hypothesis? O A. It must be true,
B. It must be testable,
O C. It must be a theory.
O D. It must be permanent.

the answer would be   10%

barometer is an instrument used to measure the atmosphere's pressure. the high air pressure relative to average levels is associated with calm and sunny weather. on the other hand, low pressure is associated with bad weather, high winds, and rain.