Ascientific question should be vague creative non-testable non-repeating

Creative

Explanation: A scientific question has some characteristics. It should not be vague it should have some real answers. It should be testable, means it can be tested by an experiment, it should be repeating means the results can be obtained anywhere by following the same methods, it should lead to a hypothesis that is falsifiable.

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

it's a b and