What is the difference between critically endangered endangered vulnerable and threatened species?

These are the different categories defined by the IUCN that are given below in detail.

Explanation:

The right question goes like this, "what is the difference between critically endangered, endangered, vulnerable, and threatened species?"

The answer to this question is,

International Union for Conservation of Nature (IUCN) classifies species into nine groups through unique criteria such a rate of decline, size and degree of population, geographical distribution, and so forth. The following are some of those categories.

According to IUCN "Threatened" embraces the divisions of Critically Endangered, Endangered, and Vulnerable.

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.