I am a colourless, odourless gas. Green plants use me to prepare food. I am the reason for the fizz in many of your soft drinks. Who am I ?

I am a colourless, odourless gas. Green plants use me to prepare food.

1.	I am a colourless, odourless gas. Green plants use me to prepare food. I am the reason for the fizz in many of your soft drinks. Who am I ?
Answer» CARBON dioxideExplanation: