Of the following substances, which are the common elements in igneous rocks?
Silicon, rubidium, nitrogen, carbon, sodium, manganese, hydrogen, oxygen, potassium, calcium, phosphorous, aluminum, iron, chlorine, magnesium, uranium, helium, gold
What will be an ideal response?
Answer: Silicon, oxygen, aluminum, potassium, calcium, iron, and magnesium
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The spiral of cumulative causation in core regions and countries is linked to
A) import substitution in the periphery. B) backwash effects in the periphery. C) spread effects from the periphery. D) agglomeration diseconomies in the periphery. E) both C and D
Answer the following statement(s) true (T) or false (F)
1. After the breakup of the Soviet Union in 1991, the 15 newly independent republics had strong economies. 2. Moscow's location near the headwaters of north- and south-flowing rivers and in the forests helped to make it the center of Muscovy. 3. The czar who began the Westernization of Russia was Ivan the Terrible. 4. Collectivization attempted to make farmers like factory workers. 5. The collision of tectonic plates created high mountains and deep lakes.
The humid subtropical climates are generally bordered by:
a. tropical savanna climates on their equatorward sides. b. humid continental, mild summer climates on their poleward sides. c. oceans on their western margins. d. steppe climates on their eastern margins.
Pressure increases by about 1 atm for every 10 m of depth in the ocean.
Answer the following statement true (T) or false (F)