________ is the softest mineral and ________ is the hardest mineral on Mohs scale
A) Talc; topaz
B) Gypsum; quartz
C) Talc; diamond
D) Gypsum; diamond
Answer: C
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Scientific studies and experience have shown that the most effective ways to slow or stop population growth are
a. government intervention such as seen in China b. reduction of poverty c. elevating the status of women d. elevating the status of women and family planning and reproductive health care e. reduction of poverty, family planning and reproductive health care, and elevating the status of women
What development led to the emergence of nomadic pastoralism in Central Asia?
A) domestication of the horse B) domestication of the sheep C) a climate change that made the region dryer D) the advent of a well-developed road network built by the Soviet authorities E) domestication of wheat
Over the last three decades, which country of East Asia has had the slowest economic growth?
A) South Korea B) Taiwan C) China D) North Korea E) Japan
A swim bladder is found in
A. sharks. B. whales. C. penguins. D. ray-finned fishes.