A spring tide occurs ________
A) once a year at the first full moon after the vernal equinox
B) twice a year at the new or full moon closest to the vernal and autumnal equinox
C) once a month, or 12 times a year
D) about 26 times per year, at every full and new moon
D
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The Convention on Biological Diversity is an international treaty
A) ratified by the United States to globally limit the loss of biodiversity. B) ratified by the United States to limit the international trade of endangered species. C) that aims to conserve biological diversity worldwide but has not been ratified in the United States. D) that would purchase all endangered species habitats in the world but has not been ratified in the United States.
Which of the following best describes the Cape floristic region of South Africa, all of Central America, and the Atlantic forests of South America?
A) They are places where biodiversity loss has been halted by intensive conservation efforts. B) They are places where intensive cultivation can immediately increase global food supplies. C) They are biodiversity hot spots where biodiversity conservation efforts are desperately needed. D) They are areas where imported invasive species have completely replaced native flora and fauna.
What appears to be a single bolt of lightning is actually a series of rapid return strokes
Indicate whether the statement is true or false
Plagioclase feldspar commonly exhibits ________, straight, parallel lines on the flat surfaces of one of the two cleavage directions.
A. laminations B. striations C. grooves D. parallelograms