What are possible changes brought in the natural environment over a period of time by human activity.

Wind, rain, tornados, and earthquakes are all examples of natural processes which impact an ecosystem. Humans additionally affect ecosystems by reducing habitat, over-hunting, broadcasting pesticides or fertilizers, and other influences.

Explanation:

places of higher salinity. there are parts of the ocean where hardly any rain falls but warm dry winds cause lots of evaporation. this evaporation removes water – when water vapour rises into the atmosphere, it leaves the salt behind, so the salinity of the seawater increases. this causes the seawater to become denser.