According to findings from the Kepler telescope,what is the estimated number of planets in the Milky Way and on how many are there habitable zones?
A) 300 billion; 125 billion.
B) 25 million; 3 million.
C) 1 billion; 25 million.
D) 50 billion; 500 million.
Correct Answer:
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Q1: What powers our planet and our lives?
A)Energy
Q2: The Sun produces which of the following?
A)Mainly
Q3: Which of the following best describes the
Q4: Why does the Sun give off electromagnetic
Q5: What is the dominant wavelength of energy
Q7: At approximately what speed does light travel?
A)80
Q8: What is the basic idea behind the
Q9: Which of the following best describes the
Q10: Which of the following best describes our
Q11: What is the name of the location
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