Compare and contrast the properties of charcoal and carbon dioxide

Carbon dioxide is a gas that is invisible. It plays a significant role by being one of the most effective green house gas. Earth's atmosphere is comprised of about 0.03% of Carbon dioxide (CO₂) and a small increase in this concentration can lead to an adverse effect, thereby causing global warming.

         Whereas, charcoal is a dark grayish colored residual product of carbon which is obtained after the withdrawing the water and volatile components of organisms as well as plant materials. Burning of charcoal produces carbon dioxide. It is used for various purposes such as cooking fuel, industrial fuel, skin care as well as whitening of teeth.

the answer is barium and copper bromide