Answer:
I believe it is burning fossil fuels.
Explanation:
Natural disasters weaken a community's social infrastructure because
D. Natural disasters can cause billions of dollars in property damage<span>.
The social infrastructure of a community includes social assets such as schools, hospitals, prisons and community housing. Such places are damaged in natural disaster, adversely affecting the community.</span>
A) earthquakes cause seismic waves.
The answer is A) a patient that can receive o- o+ b- and b+ is b+