Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules. Organic molecules made by photosynthesizers are passed through food chains, and cellular respiration converts the organic carbon back into carbon dioxide gas.

The amounts of carbon that move from the atmosphere through photosynthesis, respiration, and back to the atmosphere are large and produce oscillations in atmospheric carbon dioxide concentrations. Significant amounts of carbon are stored in the biomass of forests and in the soil.

Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle.

Fossilization releases carbon dioxide. into the air as fuels are burned. Fossilization removes carbon from the. cycle for thousands of years.

Both Oxygen cycle and carbon cycle acts independently but are subordinate on each other because the carbon cycle provides off oxygen for the oxygen cycle to use, and in return, the oxygen cycle releases carbon dioxide (CO2) which goes back into the carbon cycle.

In the carbon cycle, decomposers break down dead material from plants and other organisms and release carbon dioxide into the atmosphere, where it’s available to plants for photosynthesis. After death, decomposition releases carbon into the air, soil and water.

78 percent

The three ways by which CO2 is returned back into atmosphere are: (i) By the decomposition of dead organic matter. (ii) As the product of respiration by both plants and animals. (iii) As the gaseous waste formed by the combustion of fuels like coal, wood, petrol and gaseous fuels.

Photosynthesis removes Carbon Dioxide from the atmosphere turning the Carbon into Carbohydrates, such as cellulose found in wood. Cellular Respiration, burning coal, wood, gasoline, turn the Carbon-based molecules back into Carbon Dioxide and water. These Oxidation reactions return the Carbon Dioxide to the atmosphere.

Explanation: photosynthesis gives off oxygen as a byproduct and not carbon dioxide.

carbon dioxide through respiration. Plants take in carbon dioxide and turn it into. carbohydrates during photosynthesis.

Most renewable energy sources are carbon-free. This means that they do not emit any carbon dioxide when they generate energy. Solar, wind, and hydroelectric are carbon-free. Nuclear, though not renewable, is also considered a carbon-free energy source, because unlike coal and natural gas, it does not burn.

Greenhouse gases have far-ranging environmental and health effects. They cause climate change by trapping heat, and they also contribute to respiratory disease from smog and air pollution. Extreme weather, food supply disruptions, and increased wildfires are other effects of climate change caused by greenhouse gases.

Explanation: In the given options, marble, limestone, and baking soda are all either metal carbonates or bicarbonates. All these when react with a dilute acid then they produce carbon dioxide. Thus, lime when reacts with an acid then it produces salt and water but it does not produce carbon dioxide.

Answer: Lime or calcium oxide CaO will not produce carbon dioxide when reacted with the aqueous solution of Hydrochloric acid HCl. Explanation: Lime or calcium oxide CaO on reaction with aqueous solution of hydrochloric acid HCl give rise to calcium chloride and water but not carbon dioxide.