This product is made up of fatty acids that are derived from alkenes.

a) margarine
b) polystyrene cups
c) pain relievers
d) rubber tires

Option A, Margarine

Explanation:

Margarine are products made up of alkenes derived fatty acids. Generally these are produced during the hydrogenation of alkene. Margarine is derived from hydrogenation of animal or vegetable fats and oils. In the hydrogenation process following reaction occurs  at a temperature of 150 degree Celsius in the presence of nickel.

Vegetable oils with polyunsaturated and mono-unsaturated fats + H2  hydrogenation of double -double carbon bonds ("partially hydrogenated oil" or "partially hydrogenated fat")

This is hydrogenated further till the margarine is obtained

Hence, option A is correct

they absorb it i think

not sure

you

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above