Human Events And The Environment Practice

D. Them becoming arid desert

A. Drought

Sedimentation causes increased turbidity, which results in lower levels of light being able to pass through bodies of water. This leads to lower plant production. Sedimentation, therefore affects the food web. Also, sedimentation leads to erosion and habitat loss. Sedimentation in wetlands can lead to a loss of wetland function, which includes the filtration of pollutants from water.

Tillage can cause an eventual loss of soil production. Tillage causes the movement of material in soil which can result in pollutants accumulating in top soil, where they can then be carried into nearby water sources. Tillage can also cause an increase in erosion rates, which leads to higher rates of sedimentation for local water sources. Soil quality is also decreased by the destruction of earthworm pathways and root channels caused by tillage.

Global warming can lead to changes to the Earth's surface through the melting of glaciers. This can lead to rising sea levels, causing flooding. Antarctica's land mass is being decreased by the process.

Continued deforestation will likely cause the loss of plant and animals species, resulting in an increase in the number of endangered, extinct, and threatened species. This arises from the widespread loss of habitats that results from deforestation.

D. All of the above

C. Erosion from agricultural practices

Fertilizer can have a negative impact on the environment, because of its high nutrient content. When fertilizer enters waterways as runoff, it causes waterways to have an excess of nutrients. This excess of nutrients causes increased algae growth. When these algae decay, they deplete the oxygen in the water, negatively impacting organisms that rely on the oxygen in the water for survival.

B. An increase in the number of endangered species