Question

Which of the following human activities is associated with global warming?

burning of biomass
release of toxic mercury from industrial processes
land-filling waste materials
all of the above

Answer 1

@HELP!!!!

Answer 2

It has to be all of the above

Answer 3

but wait a sec

Answer 4

Which statement is true about ocean water salinity?

Salinity varies very little with depth.
Salinity is due mostly to dissolved calcium compounds.
Salinity decreases the water's density.
Salinity increases the water's freezing point.

Answer 5

@HELP!!!! you there

Answer 6

yeah I'm not clear about the last one, why not post this in biology?