Answer: central heating system
Can you take a better picture so that all of the words can be seen,maybe horizontally?
Answer:
Some geologic processes happen quickly, while others happen over millions of years.
Explanation:
uniformitarianism and catastrophism are geological terminologies which are used to describe events.
Catastrophism is a term used in geology to explain the theory that the Earth is shaped by sudden occurrences which takes place from time to time,these events don't last long.
Uniformitarianism is a terminology used in geology to explain that the Earth is shaped by gradually occuring events or activities which takes place over time, Uniformitarianism can also be described as GRADUALISM.