What is the order for where you would find stream deposits starting at the headwaters and going toward the mouth?
A. silt, sand, gravel
B. sand, silt, gravel
C. gravel, sand, silt
Answer: C
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If there were no natural greenhouse effect, Earth's average global temperature would be about
A. 100°C. B. 18°C. C. 0°C. D. ?18°C.
Which of the following is true about how weathering affects fractured rocks?
A) Weathering affects rocks from the outside in, forming an outer weathered zone or rind. B) Weathering attacks corners from three sides and so these are preferentially removed. C) Preferential weathering along fractures can cause blocks to become rounded. D) All of these are correct.
________ is the process by which a rock changes form or mineral content as a result of environmental changes such as heat and pressure
A) Rifting B) Precipitation C) Metamorphism D) Foliation
Which of the following is an example of economic output that can injure the environment?
A. gold mine discharging arsenic into a natural lake it's using for a tailings pond B. paper mill discharging raw chemical waste into a river C. excessive clear cutting of wood resources by logging companies D. radio-active waste leaking into a river, and all of the above