question: carbon dioxide:coral skeleton:corrode
choices.label: A B C D
choices.text: species extinction:animal:threat natural and man-made disasters:species:decrease soil desertification:air:haze warming:glaciers:melt
explanation: "carbon dioxide" will cause water acidification, and "coral skeleton" will be "corroded" by "carbon dioxide". "species extinction" is the non-renewable disappearance or destruction of "animal" species. "species extinction" itself includes the meaning of animals being threatened, which is inconsistent with the logical relationship of the query. because of "natural and man-made disasters", the number of "species" is "reduced", and "natural disasters" and "man-made disasters" are not the same category. "soil desertification" will lead to "haze". Haze is a state of "air". "climate warming" will cause "glaciers" to "melt".
relation: carbon dioxide corrode coral skeleton R5.1
relation: natural and man-made disasters species decrease R5.1
relation: soil desertification haze R5.1
relation: haze air R2.2
relation: warming glaciers melt R5.1