HELP TIMER WILL GIVE IF CORRECT What must happen for most areas on Earth to experience all four seasons?
a) The Sun must reach its highest point in the sky.
b) The Northern Hemisphere must experience winter.
c) The axis must be tilted at a certain angle that remains unchanged.
d) The north end of Earth's axis must always point away from the Sun.

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs