Biologically: Nitrogen gas (N2) diffuses into the soil from the atmosphere, and species of bacteria convert this nitrogen to ammonium ions (NH4+), which can be used by plant
Answer:
D. The system allowed the Spanish to use the natives as laborers and basically slaves
Explanation:
Imaginary war is a psychological warfare but in the brink of using nuclear warfare such as what happened during the cold war. They stopped using massive soldiers and be taken to alliance countries. The political benefit is power although they are just giving words it's already in the thin line of instigation. However, this created a negative impact on the people that anytime they are not sure if they would still live or not.
The closest source of marble for Rome was in the Apuan Alps 350 km north of Rome. In fact it was the Romans who started exploiting marble there.
He should have multiple bottles of different types of lake water or stream water , run them through the water filter and then test each result with pH paper, as pH paper will tell if it's safe or not safe to drink
