작용

The act of watching something or someone carefully for a period of time, especially to learn something. It is the first step of the scientific method.

The science that deals with the Earth's physical structure and substance, its history, and the processes that act on it. Essential for TOEFL earth science sections.

Reciprocal action or influence; how two or more entities affect each other.

Having the capacity to develop into something in the future; latent or potential rather than actual or apparent.

To cause or trigger a certain action, reaction, or state, often used with negative consequences like diseases or conflicts.

To estimate or guess what will happen in the future based on certain data or logic. It is a frequent word in scientific or economic reporting.

The state or quality of being stable; the property of not changing or failing easily.

The point, edge, or line beyond which something cannot or may not proceed; a limitation or boundary.

A temporary explanation or idea that is suggested to explain something, but has not yet been proven true through research or experiments.

The relationship between a cause and its effect. In academic contexts, it refers to how one event leads to another.