Answer the following statement(s) true (T) or false (F)

1. The rivers of Siberia are heavily used for transportation and hydroelectricity generation.
2. The first Russian Empire and the Soviet Union built manufacturing industries around
consumer markets.
3. The main problem in exploiting the oil around the Caspian Sea is drilling for it.
4. Perestroika, or restructuring, under Gorbachev resulted in an economic crisis.
5. The Slavic countries all have long histories as independent countries.


1. FALSE
2. FALSE
3. FALSE
4. TRUE
5. FALSE

Environmental & Atmospheric Sciences

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Which of the following describes the difference in the growing seasons on north-facing and south-facing hillsides in the Northern Hemisphere?

A. North-facing and south-facing hillsides have growing seasons of identical lengths. B. North-facing hillsides have a longer growing season than south-facing hillsides. C. North-facing hillsides have a shorter growing season than south-facing hillsides. D. The growing season of north-facing hillsides starts and ends later than south-facing hillsides.

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Sexual reproduction and _____ account for most variation in populations

A)mutations B)genetic drift C)asexual reproduction D)meiosis E)mitosis

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Over the past two decades, the harvesting of fuelwood has

A) increased and is causing a worsening problem of deforestation and erosion. B) declined, as developing nations use charcoal and fossil fuels and has become less of a threat to ecosystem sustainability. C) become a major industry in the United States, especially in urban areas, replacing fossil fuels in many regions. D) shifted from productive to consumptive use.

Environmental & Atmospheric Sciences

Braided streams are commonly formed at the end of glacier

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences