EVERYDAY SCIENCE

Detailed explanation-1: -The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change.

Detailed explanation-2: -Plants constantly exchange carbon with the atmosphere. Plants absorb carbon dioxide during photosynthesis and much of this carbon dioxide is then stored in roots, permafrost, grasslands, and forests. Plants and the soil then release carbon dioxide when they decay.

Detailed explanation-3: -The correct answer is b. Photosynthesis is the process through which plants “fix” carbon from gaseous carbon dioxide to produce sugar.

Detailed explanation-4: -Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too. Carbon moves from plants and animals to soils.

Detailed explanation-5: -Without carbon, life would not exist as we know it. The well-being and functioning of our planet depends on carbon and how it cycles through the Earth’s systems. Carbon is constantly in the news. Have you heard of carbon dioxide and the greenhouse effect?