Why is it important to have long term measurements when studying ecosystems

Iknow the answer is a but i don't know why

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b

Label a-f based on the table using c for concentrated and d for dilute