D. Twenty countries whose people share a common religion and cultural heritage
Answer:
I think no. D (Satellites)
(3,4,6,7,9) is the correct one
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Answer: 10, 100
Explanation:
Magnitudes are based on a logarithmic scale (base 10). For each whole number you go up, the amplitude of the ground motion recorded by a seismograph goes up ten times. Using this scale, a magnitude 5 earthquake would result in ten times the level of ground shaking as a magnitude 4 earthquake (and 32 times as much energy would be released).
1 unit increase corresponds to 10 fold increase in magnitude.
Answer: noun
Explanation:the study of the physical features of the surface of the earth and their relation to its geological structures
