Which headings should be used to complete this table?
?
R-X
X = F, CI, Br, 1
R-NH2
Organic solvent
Weak base
Biochemical processes
Foul-smelling
O
o
ether (left column); ester (right column)
ketone (left column); aldehyde (right column)
alkyl halide (left column); amine (right column)

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering