The method to determine if an event or object is older or younger by comparing the rock layers is called [BLANK] dating as it does not give an actual age in years.​

Ithink the answer is d.

In some developing nations the percentage of the animal protein from fish in the diet can be as high as 25 percent.  about 85% of fish caught is used for human consumption.  the remainder is converted into fishmeal and fish oil. 

Yes yes yes very good