Ascientist studying the star alpha centauri would probably rely on to gather data. a. the internet b. encyclopedia articles c. laboratory experiments d. descriptive investigations

a. by using fur or clothes to trap heat energy near the body

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.