What kind of unconformity is visible in this figure? The unconformity in the question is indicated by the Arrow B
A) Disconformity
B) Nonconformity
C) Angular unconformity
Answer: A
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Steel wool wetted with vinegar is sealed within a balloon inflated with air. After several hours, what happens to the volume of the balloon?
A. The balloon dissolves. B. The balloon inflates. C. The balloon deflates. D. Nothing because the vinegar is acting on the steel wool, not upon the balloon.
Which of the following describes how a contrail forms?
A. air warming as it passes over the aircraft's wings B. water vapour in the engine exhaust mixing with air C. heated air expulsed from the cabin D. heating of the air by the engine exhaust
What is the Sahel? What will be an ideal response?
Which of the following is used to match continents or track positions of the continents in the past?
A. reconstructions of seafloor spreading B. magnetism stored in rocks C. reconstructions of seafloor spreading and rock types/structures only D. All of these. E. rock types and structures