78 percent nitrogen is the air
21 percent is oxygen
nitrogen is answer
Pigeons with a 95% success rate.
In the 1500’s, Spain systematically conquered parts of North, Central and South America as well as the Caribbean. <span>The encomienda system was put in place in several areas, most importantly in Peru. Under the encomienda system, prominent Spaniards were entrusted with native communities.</span>
