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The only one i can see caused primarily by human activities would be A. Air Pollution.
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The segments of Sub-Saharan waterways unnavigable is made of waterfalls and quick rapids make the district's streams unnavigable in many spots. Techniques being utilized as a part of Sub-Saharan Africa to invert arrive debasement incorporate is expanded soil richness, diminished utilization of compound operators, reforestation.
Answer:
True
Explanation:
Trench warfare was a gruesome reality of World War I that let to a host of problems for both sides of the conflict. The strategy consisted in a establishing a front line comprised of fortified trenches that were impossible for the enemy to cross. The stalemate ensued when neither of the armies on the Western Front were able to advance because of the difficulty of breaking the well-developed trench system of the opposing side.
True or False: Earth's magnetic field goes through pole reversals.
<h2>True...</h2>