Currently, ____ of the earth's land area is protected either strictly or partially by nature reserves, parks, wildlife refuges, wilderness and other areas.
A. 5%
B. 10%
C. 12%
D. 20%
E. 30%
Answer: C
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Most coastal mudflats were once ________
Fill in the blank(s) with the appropriate word(s).
The Great Barrier Reef in Australia is designated a(n) ____________ ________________________due to its species
diversity and unique habitats. Fill in the blank(s) with the appropriate word(s).
The Russian Domain's unpredictable politics and poor economic conditions have led to this migration pattern.
A) movement into the southern Russia for agricultural opportunity B) Jewish populations within Russia returning to Russian cities from Israel and the U.S. C) eastward expansion into Siberia D) urban-to-rural due to overcrowding in major cities E) young, well-educated populations leaving Russia for other countries
On a warm and windy day evaporation will be ____
a. low b. medium c. the same as any other day d. zero e. high