DENDROLOGY

Detailed explanation-1: -Natural disasters or human activity may disrupt the way an ecosystem is functioning. Natural causes of changes in ecosystems include wildfire, disease, and flooding. Human causes of changes in ecosystems include clearing land for other use, pollution, and introducing invasive species.

Detailed explanation-2: -These changes include climate, habitat, invasion, pollution, invasive species, over-exploitation, and pollution. When environmental conditions change, the kind of animals and plants found here also change.

Detailed explanation-3: -Natural Causes Natural calamities such as avalanches, tidal waves, earthquakes, storms, and wildfires can destroy nearby plant and animal groups to an extent where they can no longer thrive in those places.