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Q3: The Pleistocene ice age began 18,000 years
Q13: Relative to the area surrounding a forest,which
Q25: Discuss the vegetation characteristics,characteristic soil orders,temperature patterns,water
Q40: Fire can actually be beneficial to an
Q48: In the northern hemisphere midlatitudes,north-facing slopes tend
Q79: Large,stable,terrestrial and aquatic ecosystems are called biomes.
Q80: When valley glaciers join together,the ice from
Q106: Which of the following results from the
Q138: The difference between photosynthetic production and respiration
Q142: Trees evolved the ability to grow tall