Carbon dioxide - Carbon dioxide is the only volcanic gas that fits the description. The sulfur gases have bad odors; water vapor could kill only if it were scalding hot; and carbon monoxide is a poisonous gas, but it would change to carbon dioxide in open spaces. In the case above, carbon dioxide seeping upward from a magma chamber had displaced oxygen in the soil around the tree roots and killed the trees (pg 134)
Answer: C.
Explanation: It isn't A because community schools are often located near urban area's so it doesn't harm them. It isn't B because by living in an urban area, that doesn't mean you have better health care services, and multiple different people of different origin live in urban area's. It isn't D because urban area's often have lots of jobs because lots of people live their and there are a lot of business's. The answer is C because living in an urban area can and does lead to improved social services but it can and has led to overcrowding.
Answer:
lo que dos edificios emblemáticos famosos construyeron andrew cornegie
either d or c they don't really care bourt a other their
