Most of Earth's mass of living organisms consists of which of the following?
A) Animalia
B) Benthos
C) Nekton
D) Plankton
E) Plantae
D
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What was Christopher Columbus’s main goal when he first traveled across the Atlantic Ocean?
a. Discover new lands b. Find new food sources c. Circumnavigate the world d. Establish a sea route to Asia e. Find new technologies
Consider the population situation in Italy or Japan: very low birthrates, an aging population, and an eventual decline in overall numbers. What policies would you recommend to these countries, assuming their desire to achieve a sustainable society?
What will be an ideal response?
After two half-lives, there is no longer any of the original radioactive material remaining.
a. true b. false
Flood basalts cover much of the ocean floor, India, and in North America, the ________
A) Columbia Plateau B) Colorado Plateau C) Newfoundland area D) Florida region E) Ozark area