Phytoplankton are responsible for how much of the surface ocean's carbohydrate production?
a. Between 30 and 36%
b. Between 40 and 46%
c. Between 50 and 56%
d. Between 70 and 76%
e. Between 90 and 96%
e
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In less developed countries, a large share of the labor force works in which sector? In certain African nations, India, and China, more than 75% of the workers are in this sector
A) primary sector B) secondary sector C) tertiary sector D) quarternary sector E) quinary sector
Neap tides occur about the time of the first quarter and third quarter phases of the Moon
Indicate whether the statement is true or false
How is the tail of a comet oriented? (Which way does it point?)
a. ?It points away from the sun. b. ?It points toward the sun due to gravitational attraction. c. ?It points back from the direction of travel. d. ?It points in the direction of its afterburner. e. ?It oriented randomly in space.
A baboon is an example of a/an ________
a. Old World monkey b. New World monkey c. hominoid