. The Earth moves in predictable patterns. One of these patterns causes approximately 12 hours of daylight and 12
hours of darkness during a 24-hour period in areas around the
equator. This movement is referred to as —

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium