Developing central Asian agriculture required significant diversions of water. Which body of water has lost 90% of its surface area and 80% of its volume since 1950?
a. the Black Sea
b. the Baltic Sea
c. Lake Baikal
d. the Dead Sea
e. the Aral Sea
e
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Disrupting the food webs in nature is one way that humans are creating the potential for a mass extinction.
Answer the following statement true (T) or false (F)
Identify the products in the following chemical reaction. 2 KalSi3O8(s) + 11 H2O --> 2 K+(aq) + 2 OH-(aq) + 4 H4SiO4 (aq) + Al2Si2O5(OH)4(s)
A) potassium ion, hydroxyl ion, silicic acid, kaolinite B) kaolinite ion, hydronic ion, salicic acid, caolinite C) potassium feldspar, water D) potassium feldspar, basic ion, silicate, kaolinite
When two continental plates collide the result is the formation of new ocean crust
Indicate whether the statement is true or false
Index minerals are:
a. Minerals that serve as good indicator of metamorphic grade b. Minerals that can be easily identified c. Minerals that occur only in specific zones d. None of the above