A G2 I star is ____________________ in diameter and ____________________ luminous than the Sun
Fill in the blank(s) with correct word
larger; more
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If Galaxy A is found to have a recessional velocity four times greater than Galaxy B, what can you say about their relative distances from Earth?
a. Galaxy A is four times closer than Galaxy B. b. Galaxy A is four times further away than Galaxy B. c. Galaxy A is twice as distant than Galaxy B. d. Galaxy A is twice as close than Galaxy B.
The process of logically inferring a result from data is called
What will be an ideal response?
The earliest Homo sapiens appeared about
A) 25 million years ago B) 6 to 7 million years ago C) 200,000 years ago D) 545 million years ago
A terrestrial world's lithosphere is ________
A) the interior region in which the planet's magnetic field is generated B) a layer of relatively strong, rigid rock, encompassing the crust and part of the mantle C) a layer of hot, molten rock encompassing the core and part of the mantle D) a thin layer of rock that lies between the mantle and crust