Why does weather vary from day to day?
PA
because cold fronts are always followed by a series of colder fronts before a warm front returns
because the rotation of the Earth causes the atmosphere to expand and contract as it nears the Sun or Moon
Cu because the Sun's energy heats all parts of the Earth evenly but does not heat the atmosphere
NA D. because weather is a complex interaction among many different variables that are constantly changing
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Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.