What role do stomach enzymes play in digestion? A They transfer food out of the esophagus. B They break down food into smaller parts. C They move food down into the intestines. D They physically mix food with stomach acid.

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

How have the greenhouse gasses increased from the year 2000 to 2018

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.