Fertile soils have a balanced mixture of
A. minerals.
B. soil organisms.
C. organic matter.
D. All of these statements are correct.
Answer: D
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The main difference between conglomerate and breccia is
A. the shape of the clasts. B. the sorting of the clasts. C. the size of the clasts. D. the kind of cement. E. All of these choices are correct.
What is considered the most advanced animal phyla?
A) Chordata B) Echinodermata C) Mollusca D) Arthropoda
Which of the following is not exogenic in nature?
A) weathering B) erosion C) denudation D) tectonic uplift E) mass wasting
Assume that the actual vapor content of the air remains constant over the course of a day. How does the relative humidity at 2:00 p.m. probably compare to the relative humidity at 5:00 a.m.?
A) The relative humidity at 2:00 p.m. is lower. B) The relative humidity is the same at 2:00 p.m. as at 5:00 a.m. C) The relative humidity at 2:00 p.m. is higher.