The picture shows a community living in a dry, grassy area. A few organisms have died off due to lack of a water source. Is this an example of an abiotic or biotic limiting factor? WHY

The answer is falsegravitational force is independent of medium and depends only on the masses of the two objects and the distance between them.

Polyethylene is a strong synthetic polymer that can be used to make toys and bottles. this makes plastics which are important also to people but sometimes it lead to harmful environmental effects such as global warming if these plastics are burned.