Mosses are small, non-vascular plants that obtain nutrients through photosynthesis. Like other green plants, they take in carbon dioxide from the atmosphere and convert it into oxygen during photosynthesis. Mosses are known for their ability to retain moisture and grow in damp environments, such as forests, wetlands, and tundra regions.
On the other hand, snails are animals that belong to the phylum Mollusca. They do not engage in photosynthesis and do not produce carbon dioxide as a byproduct of their metabolism. Instead, snails consume organic matter and respire by taking in oxygen and releasing carbon dioxide, just like other animals.
It's important to rely on accurate scientific information when discussing biological processes to avoid misconceptions.