Answer:
gah... tectonic shift or plate motion
Explanation:
The hat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.
Nautical charts and beacon nomenclature
Settlers had a faster way to ship grain.
Answer:
One example of how a water system is contaminated by non-point source pollution is Several inches of acid rain fall over a lake.
Explanation:
Examples of non-point source pollution are mostly associated to rainfall or even snow melt. All the other alternatives in this question are examples of point source pollution. They all come from direct sources. The rainfall, however, is a diffuse form of pollution since it is spread throughout the lake.