Due to the short-term environmental change of a drought, much of the soil in an area can no longer support a species of wildflower. as a result, the plants now grow only in small regions within the area. which effect of an environmental change does this best illustrate? migration loss of habitat adaptation extinction

This change best illustrates the 3rd answer choice, Loss of Habitat.

The plants aren't migrating, but are rather only surviving in areas where there is enough moisture to support life. The wildflowers are not adapting to grow in dryer conditions, and the species is not going extinct, as there are still some areas where the plants can get enough moisture.

Hope this helped!

B. ) Loss of Habitat

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

2%? i tried finding the exact sorry if it's not 100% correct ; -;