Oceanic crust is compositionally more similar to the mantle than to continental crust
Indicate whether this statement is true or false.
Answer: TRUE
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Which is an example of a chemical change?
A. burning paper B. cutting paper C. shattering a china teacup D. boiling water
Felsic magma is ___________________ than mafic magma.
a. lower in silica and flows more less easil b. higher in silica and flows more easily c . higher in silica and flows less easily d. lower in silica and flows flows less easily
What is the lowest level that sediment from a mountain can be transported to?
A. sea level B. the bottom of a stream channel C. the bottom of the sea D. Earth's core
The number of people who are too young or too old to work in a society compared to the number of working age people is the
A) dependency ratio. B) life expectancy. C) population pyramid. D) sex ratio. E) demographic ratio.