The concentration of a liquid refers to how diluted or saturated the liquid is. This orange juice is so diluted it tastes like water.
The answer is, "B", "Developing country".
I would say A or C I’m not sure but if I had to choose A or C my best guess would be A
I hope this helps :)
The answer is plankton are floaters. Plankton and nekton are both marine aquatic organisms. The main difference between the two is that plankton tend to float and be carried by water currents while nekton are organisms that swim against the current of the water. Plankton are passive swimmers while neekton are active swimmers.