I am the lightest of my group and can ignite with a mere spark, yet I am essential for water. What element am I?
Category: Science · Difficulty: expert
Hint: Think of the gas that fuels stars and our sun.
Answer
Hydrogen
Explanation
Hydrogen is the lightest element, highly flammable, and combines with oxygen to form water.
This is a expert science riddle — one of the harder riddles here. The answer is Hydrogen.
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