<u>Answer:</u> The salinity of ocean water is 34 ppt.
<u>Explanation:</u>
Salinity is defined as the number of grams of salts present per kilogram of seawater. It is expressed in parts per thousand.
The formula used to calculate the salinity of ocean water or sea water is:

We are given:
Mass of salts = 17 g
Mass of sea water = 500 g
Putting values in above equation, we get:

Hence, the salinity of ocean water is 34 ppt.
Biosphere. it is a place where plant's and animals live together and they r interconnected to eachother
Answer: option D. Atoms containd small negatively charged particles that are called electrons.
JJ Thompson carried out three important experiments with cathode rays. With them he proveed that cathode rays were negative charged particles and that the ratio charge/mass was so large that the particles either had a huge charge or had a very small mass, and he came up with the latter, defining that these negative charged particle were very small.
A) cesium chloride
B) barium oxide
C) potassium sulfide
D) beryllium chloride
E) hydrogen bromide
F) aluminum fluoride