Which of these statements best describes the similarity between the two events shown in the diagram? O Both may result in eclipses of the sun or moon
O Both may result in distortion in the shape of Earth.
O Both may cause the moon's shadow to fall on Earth.
Both may cause Earth's shadow to fall on the moon.

How many moles are in 43.9 l of oxygen

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.

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.