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What acronym stands for the six elements that make up 95% of the body weight of living things?

This expedition is seen as when oceanography became a modern science?

This is the time required for the moon to pass from one new moon to another new moon?

This is the smallest part of of an element that displays all the properties of an element?

This layer of our planet is hot, partially melted and flows slowly?

These are surface expressions of plumes, and an example created Hawaii?

This particle has a negative charge?

The other name for the north star is?

This is the ability of water molecules to cling to each other because of hydrogen bonding?

This is when the tide is turning?