This photograph of the tundra biome was most likely taken





A) near the ecotone with the boreal forest biome.

B) near the ecotone with the grassland biome.

C) far from the treeline.

D) where the active layer is thinnest in the tundra biome.


A) near the ecotone with the boreal forest biome.

Environmental & Atmospheric Sciences

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The South Equatorial Current is an example of which of the following types of currents?

A) Eastern Boundary Current B) Equatorial Current C) Northern Boundary Current D) Southern Boundary Current E) Western Boundary Current

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Disastrous famines in the past 200 years

A. Have resulted from population overshoots based on overuse of resources B. Have mostly resulted from politics and economics rather than from overpopulation C. Prove conclusively that Malthus was right D. Prove conclusively that Malthus was mistaken E. Prove conclusively that Marx was mistaken

Environmental & Atmospheric Sciences

One of the problems with genetically modified food crops is that if pollen released from the plants spreads among non-engineered plants it will reduce the natural genetic ____________________ of wild strains

Fill in the blanks with correct word

Environmental & Atmospheric Sciences

Worldwide reserves for most metals are projected to last

A. a few years. B. about 1000 years. C. a few decades. D. a few centuries.

Environmental & Atmospheric Sciences