Las trampas de CO2 calientan muy bien. Eso significa que cuanto más CO2 hay en el océano, más(. ) se vuelve el océano.

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

there are no contact forces mentioned on the list of choices that you've provided.