I do not think so. what other technology could we use.
I believe the answer is either A or D. However, I think D sounds the most fitting but like i said, it could be either one. :)
Answer:
the answer is (c) the US Census Bureau
Contour lines do not cross one another because each line represents a different elevation on a topographic map.<span> </span>
Answer:
Basaltic magma -- SiO2 45-55 wt%, high in Fe, Mg, Ca, low in K, Na
Andesitic magma -- SiO2 55-65 wt%, intermediate. in Fe, Mg, Ca, Na, K
Rhyolitic magma -- SiO2 65-75%, low in Fe, Mg, Ca, high in K, Na
Explanation: