Igneous rocks are overwhelmingly composed of silicate minerals. Why is this so?
A) Silicates are very heavy.
B) Silicates compose a huge amount of the earth's crust.
C) Silicates are only found in igneous rocks.
D) Silicates are very rare.
Answer: B
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Forests provide habitats for about ____ of the earth's terrestrial species.
A. one-quarter B. one-third C. one-half D. two-thirds E. three-quarters
The type of texture in which the rocks consist of coarse-grained particles of approximate equal size is:
a. porphyritic b. phaneritic c. pyroclastic d. aphanitic
Edie Aikau is well known, and considered a hero, in Hawaii as what?
A) One of the richest hotel owners and businessmen in Honolulu responsible for the current tourist trade. B) The commander in charge of Pearl Harbor on December 7th, 1941. C) The chief of the largest tribe when Europeans discovered Hawaii. D) A surfing champion, legendary lifeguard, and peacemaker.
What are the economic characteristics of former colonies?
What will be an ideal response?