: A necessary cause must be present for an effect to occur (you need oxygen for fire), while a sufficient cause is enough on its own to produce the effect (a lightning strike is enough to start a forest fire).
: A proximate cause is the immediate trigger—for example, a match lighting a fire. The ultimate cause is the deeper reason—why the oxygen, fuel, and heat were all in that place at that time. causes
When reading or writing, certain words act as signposts for causal relationships: : A necessary cause must be present for
The concept of "causes" is the engine of our reality, driving everything from the microscopic shift of a tectonic plate to the grand sweep of human history. Understanding what makes things happen allows us to predict the future and change the present. The Invisible Threads of Causality When reading or writing, certain words act as
: As a result , consequently , therefore , thus , so . Cause and Effect Using Informational Text
: Because of , since , on account of , due to , the reason for .