That's true. There is little variety among organisms found in pools, pounds and lakes. Despite that fact that many ponds are seasonal, lasting just a couple of month (for exemple sessile pools) while lakes can exist for more than hundred years. Lakes and ponds have limited species diversity because they are often limited from each other and from other water sources like rivers, seas and oceans.
Just like a compass, a modern day gps will say whether you're going north, east, south, or west, however they also tell your exact location and the location that you need to go too.
Answer:
Its B because if it reacted chemically it wouldn't be considered a physical property since its changing on the "inside"
It is a force resulting from the redistribution of energy contained by electrons, which tends to bind atoms together to form different types of molecules
