Which one of the following is an important mechanical weathering process for enlarging fractures and extending them deeper into large boulders and bedrock in temperate and arctic environments?
A) salt wedging
B) oxidation
C) frost wedging
D) hydrolysis
E) uniformitarianism
Answer: C) frost wedging
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Indicate whether the statement is true or false
To make organic fertilizer by composting, you do not include ________
A) animal manures B) shredded plastic and metals, waste from animal butchering C) wood chips D) crop residues E) dead leaves, weeds
The polar jet stream is embedded within the upper:
a. easterlies. b. westerlies. c. trade winds. d. monsoon winds.
Placers are sedimentary deposits where valuable minerals have been hydraulically sorted. Which of the following mineral properties are required for hydraulic sorting by streams to be effective?
A. high solubility and high density B. small grain size and well-rounded shape C. large grain size and high solubility D. high density and high chemical resistance E. well-rounded shaped and high chemical resistance