The light reactions of photosynthesis produce which of the following?
A) glucose
B) molecular oxygen
C) both a and b
D) neither a nor b
B
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Computer models predict that average global temperatures will increase ________ by 2020
A) 3.6 °F. B) -2°F. C) 4°F. D) 1°F. E) 10°F.
Please discuss the history of Korea, explaining how it came to be divided into two countries. What is the current situation in South Korea and North Korea?
What will be an ideal response?
Drainage density refers to
A) the thickness of the water in the stream. B) the number of channels in an area. C) a measure determined by dividing the length of all the the channels by the area of its drainage basin. D) the arrangement of channels in a given area.
Spreading centers have relatively peaceful eruptions of magma because the ________.
A. Olivine-poor magma has a high-volatile content. B. SiO2-poor magma is at high temperatures. C. SiO2-rich magma is at a temperature just above the melting point of quartz. D. Olivine-rich magma has a high viscosity.