which of the following scenarios represents change to an ecosystem brought about by biotic factors?\na. a…

which of the following scenarios represents change to an ecosystem brought about by biotic factors?\na. a wildfire caused by lightning striking a tree\nb. a flood caused by a severe storm\nc. a landslide caused by cattle overgrazing\nd. a volcano

which of the following scenarios represents change to an ecosystem brought about by biotic factors?\na. a wildfire caused by lightning striking a tree\nb. a flood caused by a severe storm\nc. a landslide caused by cattle overgrazing\nd. a volcano

Answer

Brief Explanations:

Biotic factors are the living components of an ecosystem that influence its environment. In the provided options:

  • Lightning (a), storms (b), and volcanoes (d) are abiotic factors, meaning they are non-living physical or chemical elements of the environment.
  • Cattle (c) are living organisms. Overgrazing by cattle removes vegetation that stabilizes soil, leading to physical changes like landslides. Since this change is initiated by a living organism, it is a biotic factor.

Answer:

c. a landslide caused by cattle overgrazing