<span>Basaltic magma is the
type of magma that is high in Fe (Iron), Mg (Magnesium), Ca (Calcium) and low
in K (Potassium) and Na (Sodium). Basaltic magma has low viscosity and
moderately fluid. It is partially melted and can usually be found in hot spots
and rift-zones.</span>
Immigrants made up the largest percentage of workers in American industry at the time. They mostly took up jobs relating to factory work, though a few minority groups, such as the Germans, made a living as farmers.
Cowboys spent over 12 hours in the saddle, they suffered from rheumatism, damage to their spines and a wide variety of injuries related to their work.
Answer D.
First generation biofuels are made from sugar crops (sugarcane, sugarbeet)
