Ologies

Today’s questions are a study of Ologies.

One

What is the science of fruit-growing?

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Two

What word is a noun which means a person who collects postcards?

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Three

Potamology is the scientific study of which geographical features? 

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Four

What is the scientific study of trees?

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Five

In etymology, which botanical term is used to mean the earliest form of a word?

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Good luck! I’ll post the answers later.

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