River deltas such as the mississippi river delta developed due to
a. tectonic activity
b. the weathering of surface material
c. deposition of sediment by water, wind or ice

What is the value of n in the given statement 8n< 40

Which city area has the most accessible oil reserves a) caspian sea b) siberia c)arctic coast d)lake baikal

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.