Which two ideas does this passage most clearly develop ?
a. the contempt that humans show nature will come back to haunt us; natural processes are worthier of respect than technology
b. from nature’s standpoint, human kind is a disease that must be purged; only through natural processes can the earth repair
c. the footprint of humanity on the world is permanent; humans may fade, but the effects of our civilization are lasting
d. nature can destroy creating that were thought indestructible; humans arent as powerful as the forces of nature