Lake level variations are the strongest control on erosion along the Great Lakes shorelines
Indicate whether the statement is true or false
TRUE
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You buy land in the tropics on steep mountain slopes covered by large trees and deep soil. You want to build a house on the land. Which of the following building plans is a very bad idea because of the danger of triggering mass wasting?
A) Sell the land because it will always be prone to mass wasting. B) Excavate a flat bench on the slope for the house, pushing the debris to the slope below and leave a cut bank above the flat bench with grass planted on the steep slope. C) Excavate the soil from the building site, install drainage systems, and backfill with gravel to prevent water accumulation. D) Terrace the slope, building on the terraces, and constructing a rock retaining well with voids to allow drainage of water.
Use of biochar removes carbon from the atmosphere by
A. fertilizing the Amazon Basin. B. burning biomass such as chicken waste. C. making an excellent organic fertilizer D. keeping carbon in the soil for up to 1,000 years. E. releasing small amounts of carbon dioxide when it is made.
What percentage of the world's plant and animal species are found in tropical rainforests?
A) 40% B) 10% C) 20% D) 50% E) 30%
One of the reasons why tornado frequency is lower in Europe than in North America is
A) the Gulf Stream encourages the clash or warm and cold air. B) east west trending mountains inhibit the clash of warm and cold air. C) lower population densities and storm reporting capabilities. D) higher than normal temperatures due to the presence of the Gulf Stream.