The solute is the substance dissolved in water.
A hypotonic solution is a solution with a low concentration of solute.
A hypertonic solution is a solution with a high concentration of solute.
An isotonic solution is a solution that contains equal concentrations of solutes.
The direction of water displacement (or osmosis) depends on the total concentration of solute on each side of the membrane and not the nature of the solute.
Oil spills especially harm wildlife around and in water, such as geese, ducks, fish, frogs, and swans. penguins, otters, and other such animals are harmed as well. The oil is very dangerous to the habitat as a whole, because if one part of a system is messed up, the whole system is effected. Oil spills are difficult to manage because oil is hard to clean up, and it spreads. Oil gets on everything and anything, and is toxic to living organisms. It can take off the natural oil on waterfowl's wings, making it hard to swim and escape the oil.
The human activities directly or indirectly affect the nature. The deforestation and the removal of the vegetation for the purpose of development or timber, the land is exposed to the dangers of the landslide. The tress, plants and other vegetation keeps the soil in place with the help of their roots. The soil erosion is prevented by the trees, but the cutting down of them by the humans increases erosion and hence, the risk of landslide.
Fewer landfills is the best answer here. Landfills are built on wildlife habitat, so having less plastic in the trash means less plastic in landfills, which means fewer landfills, which means less habitat loss due to the construction of landfills.