The salinity of seawater at the poles is:
a. high due to evaporation.
b. low due to precipitation.
c. high due to freezing.
d. low due to river input.
e. similar to the open ocean.

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18