Which of the following processes maintain the salinity (salt content) of the earth's oceans?
a. animal reproduction and decomposition
b. plant photosynthesis and respiration
c. transpiration and atmospheric condensation
d. volcanic emissions and reactions at the sea floor

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?