Select the correct option:
The gas released during respiration is :
Carbon dioxide
The explanation for correct option B: When an animal breathes, it takes in oxygen gas and releases carbon dioxide gas into the atmosphere. This carbon dioxide is a waste product and gas released produced by the animal's cells during cellular respiration.
The explanation for incorrect option A: Oxygen gas is required in the process of respiration.
The explanation for incorrect Option C: NO2 forms from emissions from cars, trucks and buses, power plants, and off-road equipment.
The explanation for incorrect option D: These gases, especially SO2, are emitted by the burning of fossil fuels — coal, oil, and diesel.
Concluding Statement: From the above reasons Option B is the correct answer