C is your answer and I hope it helps you!
Because it covers up most of the central and northern parts of mexico
Answer:
they were around the nile river so, they have fertile good soil, they produce food for themselves and sold too, they had walls round with a large wide road going through the city
Answer:
Septic systems.
Explanation:
A septic system refers to a highly efficient, self-contained system for handling underground waste. The simple design of the septic system make them economically efficient to install. Since septic systems handle and dispose of on-site household waster, they are often more cost-effective than consolidated sewer systems in rural areas where lot sizes are larger and houses are widely spaced apart.