it's (+/-) 90 degrees. in total it's 180 but the equator is at zero and the two hemispheres have 90 each
The first one is the 3rd option and the 2nd one is also the 3rd option
Chloride is the largest contributor to the salt ions in the ocean.
It's part of sodium and calcium salts.
The 46 chromosomes of a human cell are organized into 23 pairs, and the two ... you may have inherited two different gene versions from your mom and your dad. ... of chromosomes helps cells pass on a perfect set of DNA to each daughter cell.
