Q: What element is released into the atmosphere by the burning of fossil fuels?


Read this paragraph and choose the correct option from the provided answers:

water. Sulfur, critical to the 3–D folding of proteins (as in disulfide binding), is released into the atmosphere by the burning of fossil fuels, such as coal. The cycling of these elements is interconnected. For example, the movement of water is critical for the leaching of nitrogen and phosphate into rivers, lakes, and oceans. Furthermore, the ocean itself is a major reservoir for carbon. Thus, mineral nutrients are cycled, either rapidly or slowly, through the entire biosphere, from one living organism to another, and between the biotic and abiotic world.

 Choices:

- carbon

- helium

- oxygen

- sulfur


A:
sulfur