EasyScience
I am a gas that is essential for plants but I can't be bought at the gas station. What am I?
Riddle
I am a gas that is essential for plants but I can't be bought at the gas station. What am I?
Choose an answer
A.Oxygen
B.Nitrogen
C.Hydrogen
D.Carbon dioxide
Hint: It's a 2-word phrase with 13 letters, starting with "C".
Answer
Carbon dioxide
Why this is the answer
Plants use Carbon Dioxide for photosynthesis to produce food.
This riddle is filed under Science Riddles and rated Easy.