Which of these textures help geologists determine if a rock is volcanic in origin?
A) Pegmatitic
B) Aphanitic
C) Porphyritic
D) Phaneritic
Answer: B
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Which emits radiation of the highest frequency?
A. The Sun. B. A blue-hot star. C. A red-hot star. D. all the same
Investors have considered Africa an unfriendly business environment due to poverty, corruption, and low quality of life.Recently, this attitude has changed, with Africa becoming more attractive to investors.What factors have contributed to the turnabout in African business opportunities?
A large region identifiable by several topographic or geological traits is known as a
A) ecoregion. B) topographic region. C) physiographic province. D) biome.
Waves converge on headlands due to ________
A) constructive interference B) destructive interference C) wave diffraction D) wave reflection E) wave refraction