What is a sign of a lava dome eruption?
What will be an ideal response?
When magma is erupted to the surface and piles up, it expands and heat rises onto the base of the surface which leads to an eruption
Physics & Space Science
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How many atoms are in one gram of 27 13 Al?
a. 
b. 
c. 
d. 
e. 
Physics & Space Science
If the Moon's orbital plane was aligned with the celestial equator we could
a. have eclipses every month. b. never have eclipses. c. have eclipses only at solstice. d. have eclipses only at the equinoxes.
Physics & Space Science
Spherical Mirrors: An object that is 47.5 cm tall forms an image that is 38.6 cm tall and 14.8 cm from a spherical mirror. How far is the object from the mirror?
A. 124 cm B. 47.6 cm C. 18.2 cm D. 12.0 cm
Physics & Space Science
The proper motion of a star is its true velocity through space
Indicate whether the statement is true or false
Physics & Space Science