Star twinkle is most pronounced when a star is
A) near the horizon.
B) 30 degrees above the horizon.
C) 60 degrees above the horizon.
D) 90 degrees above the horizon.
E) 30 degrees below the horizon.
A
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Which country is located in the greater antilles
a. Cuba b. Nicaragua c. Bahamas d. Mexico
Examine the satellite image of Death Valley, California
A) What province of the United States is it located within? B) Identify the various desert landforms seen there; circle and label them. C) Describe how each one forms. D) Finally, describe the sequence of events that produced this scene over time.
The fastest growing source of electricity in the world today is from ________
A) nuclear power B) solar power C) hydropower D) wind power E) biomass
Scientists predict that human-enhanced global warming will have several effects. What is one of them?
A. overall increased precipitation B. overall decreased precipitation C. eradication of many insect pests D. raising of sea levels E. allowing of crops to be raised in the tundra