Which of these is an example of a biotic factor that could limit a community in an ecosystem? A. A drought occurs for several months.
B. New predators move into the ecosystem.
C. A hurricane passes through an ecosystem.
D. Living space is lost due to human activities.

B. New predators move into the ecosystem.

Explanation:

A, C, and D are all abiotic (nonliving) factors that could limit a community in an ecosystem.

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves