In regards to the carbon cycle, which of the following is not a carbon source for our planet?Group of answer choicesfossil fuelsdiffusion of carbon dioxide into the atmosphere from the oceanrespiration of animalsrespiration of plantsphotosynthesis

Which of the following does not remove carbon dioxide from the atmosphere?Group of answer choicesburning fossil fuelsthe oceanplantsphotosynthesis

Of the following, which is contributing the most to the amount of carbon dioxide in the atmosphere?AgricultureRespirationPhotosynthesisCombustion of fossil fuels

Select all the ways that carbon enters the atmosphere in the carbon cycle.Multiple select question.combustionphotosynthesisrespirationweathering of soil

Which FIVE of the following add carbon dioxide to the atmosphere?Group of answer choicescombustion of biofuels (e.g., biodiesel)combustion of fossil fuelsdissolution in ocean waters and the formation of limestoneforest firesphotosynthesisrespiration and decayvolcanic eruptionsweathering of silicate minerals

What process in the carbon cycle has increased carbon dioxide in the atmosphere and in the ocean, causing damage to ecosystems?Multiple ChoiceCompressionDecompositionPhotosynthesisBurning fossil fuels