How do scientists recognize that a climax community has been reached? a. the succession of community is completed. b. no more natural resources are available to support the community. c. the population of a community stabilizes and doesn't change in size or scope. d. the environment is unable to cause changes to that community.

C. The population of a community stabilizes and doesn't change in size or scope

Explanation:

The climax communities are the communities that have reached the optimal number of species, as well as the optimal number of individuals of the species in the environment in accordance to the available food sources and space. These communities are in a state of equilibrium. Basically, the ecosystem has just the right amount of species, and just the right number of individuals of the species that it can support. All these species interact with each other, benefit from each other, and contribute to the well being of the ecosystem, living in perfect balance. The climax communities also need time to be established, but they also are communities that have not experienced disturbances for quite some time.

In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. ... Thus, the exact number of hydrogen bonds formed per molecule varies. Cohesion. Molecules of pure substances are attracted to themselves.