Native Americans produced petroglyphs by etching into ________.
A) rocks that had been subjected to case hardening
B) rocks that had been coated with desert varnish
C) dark basalts
D) obsidian
Correct Answer:
Verified
Q18: According to the textbook,the highest recorded temperature
Q19: To qualify as a desert,a region must
Q20: At 30° north latitude,at the northern edge
Q21: Evaporite deposits in coastal,subtropical regions derived from
Q22: Badlands are characterized by _.
A) thick caliche
Q24: Desert varnish consists of _.
A) pesticide and
Q25: A mushroom-shaped landform consisting of a column
Q26: The saltation of sand involves _.
A) spherical
Q27: When fine-grained sediment is blown away as
Q28: Calcrete (caliche)forms in a desert climate through
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