B. Washington DC(short for Districtof Colombia).
"The Silurian is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago, to the beginning of the Devonian Period, 419.2 Mya.<span> <span>Wikipedia."
https://www.google.com/search?q=He+Silurian+period+occurred&rlz=1C1RUCY_enUS760US760&oq=He+Silurian+...
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I think it is the Prime Meridian, though I may be wrong.
Answer: Health
Explanation:
Elevation above sea level can affect your <u>health</u>, your mood, your metabolic rate (Calorie Burn) and Your overall mental <u>health</u>, you may notice most of these are <u>Health</u> effects.
Basal sliding phenomenon helps glaciers move down the valleys of the southern Alps. Basal sliding is the action of the glacier moving down across the bed because of the melting of water below the ice moving as the lubricant.
