Fill in the blanks to complete these sentences about rock characteristics.
A rock is an
of minerals.
The of a rock is a result of its mineral composition.
Most rocks contain more than one type of

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide

When you look at the data about all of the children in your setting, you can learn a. about child development. b. how well each individual child is performing. c. what outside factors you need to change. d. how effective your instruction and environment are.

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