Polar bears are listed in red as they are belong to Endangered Species. These species are gonna extincting due to gradual changes by environmental factors.
DescriptionBiotic components, or biotic factors, can be described as any living component that affects another organism or shapes the ecosystem. So the answer would be 1 an 2
I would say that wind is the top agent of erosion that is assisted by gravity because gravity pulls down the sediments that the wind is eroding.
