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:
1. B - Manufacturing
2. B - More-Developed countries conduct more scientific research
3. C - Tertiary
I Did The Quick Check :)
I would say difficult
Because the American foreign policy was a brutal law.
