When an iron-bearing mineral is heated above a certain temperature, it loses its magnetism. This temperature is about ____________
a) 110°C
b) 220°C
c) 340°C
d) 580°C
e) 1200°C
Answer: d) 580°C
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A foliation found in metamorphic rocks with more than 50% plate and elongated minerals is known as
____________________, and the rock this foliation is found in is called ____________________. Fill in the blank(s) with the appropriate word(s).
Frost wedging in the mountains produces ____
A)tailings B)talus C)conglomerate D)exfoliate E)regolith
Most of Earth's organisms have been identified and classified
Indicate whether the statement is true or false
The most popular theory for the origin of the moon today is ________
A) the early Earth and a planet the size of Mars collided, and the ejected material coalesced to form the earth's moon. B) the earth captured a small planet, which is our moon. C) the moon and Earth coalesced from an eddy in the solar nebular, forming a binary planet system. D) the moon was formed when Mars and a comparable size planet collided, and the moon was ejected toward Earth and captured.