EVERYDAY SCIENCE

Detailed explanation-1: -Carbon dioxide is a waste product of combusting fossil fuels, and its accumulation in the atmosphere presents a planetary hazard. Carbon dioxide is also managed and used as a resource.

Detailed explanation-2: -While the water and energy are useful to animal cells, they have no need for carbon dioxide. So it is breathed out of the lungs to remove it from the body. This is why carbon dioxide is considered a waste product in humans.

Detailed explanation-3: -Plants also excrete some waste substances into the soil around them. When plants respire, plants produce carbon dioxide and this excess carbon dioxide must be eliminated. Hence the waste products in plants are oxygen, carbon dioxide and water.

Detailed explanation-4: -The nose, throat, and lungs are just a few parts of the body that make up the respiratory system. They work together to bring oxygen into the body and take carbon dioxide (a waste product) out.

Detailed explanation-5: -Carbon dioxide is the waste product involved in the aerobic respiration of the plants whereas oxygen is the waste product during the process called photosynthesis. Photosynthesis is the process by which the plants take up the light and that light is converted into the chemical energy to meet the requirements of food.