What's in! Scientists believe that the formation of the universe began through the explosion of a primordial
atom which happened approximately 13.7 billion years ago. The origin of the universe is described
by the Big Bang theory which was introduced by Edwin Hubble. In 1929, Hubble demonstrated that
all celestial objects in the universe move away from each other.​

Which objects allow humans to access groundwater? check all that apply.

Write a 150-word essay describing the effect of people's activities on the environment in the region.

Why would the crystals in an intrusive igneous rock be larger than the crystals in a chemical sedimentary rock? a. intrusive rocks form beneath the earth's surface, so they cool very slowly, which produces larger crystals. b. chemical sedimentary rocks form from dissolved substances on the earth's surface with very high heat and cool very slowly, which produces smaller crystals. c. chemical sedimentary rocks and intrusive rocks have crystals of the same size. o d. chemical sedimentary rocks form deep in the earth, so they cool slower, which produces small crystals. € read question correct: