- Dendrophobia is the fear of trees.
- The expression to 'knuckle down' originated from playing marbles (players used to put their knuckles to the ground for their best shots).
- The hydrochloric acid found in your stomach is strong enough to dissolve a nail.
- M&M's chocolate stands for the initials for its inventors Mars and Murrie.
- Every living thing on the Earth contains carbon.
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