Which of the following occurred first?

A) The Sun
B) The Milky Way galaxy
C) The big bang
D) Earth
E) A nebula


Answer: C

Environmental & Atmospheric Sciences

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Which of the following types of air masses is mainly responsible for hot, muggy summer weather in southern Ontario?

A. cT B. mP C. cP D. mT

Environmental & Atmospheric Sciences

________ contribute negative charges, but minimal mass, to an atom

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

Barchans ____

a. are a type of longitudinal dune b. have slip faces oriented parallel to the average wind direction c. have arms that point downwind d. are typically stabilized by vegetation

Environmental & Atmospheric Sciences

Igneous rock is formed ________

A) by crystallization of magma B) by changes in mineral composition C) by the weathering of preexisting rocks D) at great depth within Earth

Environmental & Atmospheric Sciences