I am the base of life yet can be toxic, I consist of two parts and can change states, my form is essential for all organisms. What am I?
Category: Science · Difficulty: expert
Hint: Think about what all living things require.
Answer
A water molecule
Explanation
A water molecule, made up of two hydrogen atoms and one oxygen atom, is vital for life and can be harmful in certain quantities.
This is a expert science riddle — one of the harder riddles here. The answer is A water molecule.
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