New material filling a mold forms a ______________ of the original shell or bone
a. cast
b. mold
c. hole
d. groove
a
Physics & Space Science
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The Moon always keeps the same side facing Earth and therefore Earth always keeps the same side facing the Moon
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
It is the formation of iron in an evolved giant's core that triggers a Type II supernova event
Indicate whether the statement is true or false
Physics & Space Science
If the magnitude difference between one star and another is 5, the stars differ in brightness by a factor of
a. 2.51. b. 10. c. 4. d. 100.
Physics & Space Science
Where do the ocean's salts originate?
What will be an ideal response?
Physics & Space Science