Examlex
Calcium is required for transmission of nerve impulses.
Granite
A coarse-grained, felsic igneous rock containing mostly feldspar and quartz.
Continental Crust
The thick, generally granitic layer of the earth's crust that forms the continents and continental shelves, distinct from the denser, basaltic oceanic crust.
Upper Mantle
The upper mantle refers to the section of the Earth's mantle situated just beneath the Earth's crust, extending down to about 660 kilometers below the Earth's surface. This region is significant for its role in tectonic movements and the convection currents that drive plate tectonics.
Earth's Layers
The division of the Earth into distinct layers including the crust, mantle, and core, each with its own properties and composition.
Q8: Herbal supplements are unregulated and possibly unsafe.
Q17: The absorption of iron is impaired by:<br>A)
Q21: Joe is a 34-year-old dad taking a
Q28: Since iron is widespread in food sources,
Q30: Which vitamin is most likely to be
Q33: A desirable level of total blood cholesterol
Q52: Which type of water is drawn from
Q54: Which vitamin is important for collagen formation
Q60: Which organ senses the body's blood pressure?<br>A)
Q99: Alcohol can be eliminated via:<br>A) sweat.<br>B) urine.<br>C)