Negative environmental impacts from oil and natural gas production may occur due to
a. release of oxides in combustion emissions.
b. accidental spills at extraction sites and during transport.
c. erosion and landslides during withdrawal of resources.
d. improper storage and disposal of spent fuel.

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.