Based on this graph of the number of sunspots per month data from the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center (SWPC), when can we expect the next significant disruption to electronic communications?
A. 2018
B. 2008
C. 2012
D. 2023
Answer: C
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Both land erosion and sea-level change can shape a coastline
Indicate whether the statement is true or false
The split between the Roman Catholic branch and the Orthodox branch of Christianity was due to a(n)
A) unmanageable territory of the Roman Empire. B) migration of the Orthodox Christians east. C) rivalry between the Pope of Rome and the Patriarchy of Constantinople. D) presence of a large Jewish diaspora in Rome. E) diffusion of Islam.
What are the different ways of measuring the intensity and/or effects of earthquakes? Which do you think is best, and why?
What will be an ideal response?
In 1950 the global infant mortality was ________ times higher than it is today
A) 10 B) 4 C) 1 D) 2 E) 1/2