A habitable zone
A) exists around all stars
B) only exists around stars which are identical to the Sun
C) only exists around stars which are similar to our Sun
D) only exists around one star, the Sun
A
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When dark matter was first discovered, some astronomers thought that ?o was greater than one from the extra gravity, favoring what type of universe?
What will be an ideal response?
In the difference A - B - C, A is accurate to 5 decimal places, B is accurate to 2 decimal places, and C is accurate to 3 decimal places. What is the correct number of decimal places in the difference?
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