Just to clarify, nothing (and I mean NOTHING) happens on earth without some type of reason. Every little thing that happens is a counter effect of something else that happened. Nothing in the universe ever happens by chance.
This is called "Law (or Principle) of Cause and Effect": Causality - Wikipedia, the free encyclopedia
Causality (also referred to as causation) is the relationship between an event (the cause) and a second event (the effect), where the second event is understood as a consequence of the first. |
In common usage Causality is also the relationship between a set of factors (causes) and a phenomenon (the effect). Anything that affects an effect is a factor of that effect. A direct factor is a factor that affects an effect directly, that is, without any intervening factors. (Intervening factors are sometimes called "intermediate factors.") The connection between a cause(s) and effect in this way can also be referred to as a causal nexus