The answer is A: being familiar with different types of galaxies that exist in the universe
The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
The water cycle is a system that shows how the water moves around in different states to transport itself. It uses different states which show a different transportation such as evaporation or condensation. The water cycle can also use continuous movement above and below the earths surface. There are five main steps to the water cycle which are evaporation, condensation, precipitation, transpiration, and runoff but there are still many more.
Hope this helps! :)
Alot of humans might not now they are even harming the systems by smoking or littering.
