Although the bacteria are too small to be seen by the naked eye, they do play a key role in the process of decomposing dead branches and leaves. They can absorb the carbon dioxide and other nutrients to grow the trunks and branches, and then break down into carbon dioxide and release it into the atmosphere Without bacteria, the carbon dioxide on the earth can only sustain the use of plants for 40 years, because carbon will be locked in the plants and cannot participate in the material cycle. Because of this effect of bacteria, the entire forest is maintained Even the greenery of the entire planet. What is incorrect about the "critical role" in the passage below? ['The bacteria release the carbon dioxide it absorbs into the atmosphere during the process of decomposing the trunk and branches and leaves.', 'Bacteria release carbon dioxide in the process of decomposing dead leaves, and maintain the material cycle on the earth.', 'Bacteria break down the carbon that may be locked in the plant and release it into the atmosphere.', 'Without bacteria to break up dead leaves, the earth will not be able to maintain its lush greenness.']