The major factor determining whether the thermohaline currents ...

[madam-professor]

The major factor determining whether the thermohaline currents flow near the surface or on the bottom of oceans is
 
  A) pH.
  B) pollutants.
  C) Hadley cells.
  D) water temperature and density.

Question 2

Osmium tetroxide is widely used in electron microscopy because it is an excellent lipid fixative. However, osmium tetroxide can quickly cause irritation of the eyes and skin.
 
  Therefore, when handling osmium tetroxide, people should use a chemical hood and wear gloves to protect again osmium tetroxide's A) ignitability.
  B) toxicity.
  C) photoreactivity.
  D) corrosivity.

[strudel15]

Answer to Question 1

D

Answer to Question 2

B