Mountains have crustal roots that help support them.
Answer the following statement true (T) or false (F)
True
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Which of the following lines of evidence would best support the argument that Earth's atmosphere is warming as a result of an increase in solar output but would not be the argument that it is warming because of increased concentrations of greenhouse
gases? A) Earth's temperature stabilizes when the concentration of greenhouse gases in the atmosphere begins to decrease. B) Both the troposphere and stratosphere show warming trends. C) The stratosphere shows a warming trend, but the troposphere shows a cooling trend. D) Warming trends are detected in some regions of the planet but not others.
Precise measurements of evapotranspiration are difficult
Indicate whether the statement is true or false
Continental shields and platforms represent ________
A) sedimentary basins with inland seas shaped like a shield, like Hudson's bay B) areas in the interior of continents that have not experienced mountain building for billions of years C) names given to Paleozoic mountain belts D) sites where continents collide, analogous to warriors clashing shields
Pesticide resistance occurs when a population of pests
A. Is not affected by chemicals because the pesticide chemicals do not break down in the environment B. Genetically changes (through natural selection) and is no longer affected by the chemicals C. Grows extremely large because of chemical misapplications D. Is completely wiped out by the pesticide chemicals E. Becomes too numerous for chemicals to control