1, How is land subsidence related to a rise in human population?
A. Land subsidence happens when the increased demand for water results in rapid recharging of aquifers.
B. Land subsidence happens when the increased demand for water causes the levels of the water table to lower.
C. Land subsidence happens when the increased demand for water causes the levels of the water table to rise.
D. Land subsidence happens when the increased demand for water is countered with sound agricultural practices.
3. Which situations described are examples of a standards and measurements issue related to land reclamation? Select the two correct answers.
A. Monitoring of water quality at a reclaimed site shows high levels of metals, like lead, in the water.
B. The funding by a local developer to repurpose a reclamation site as a shopping center is withdrawn.
C. Despite permit agreements, a mining company abandons a mine site after closure of the mine.
D. A mining company claims that protecting an endangered species should not be included in permitting.
E. Vegetation introduced to a reclaimed site is an invasive species that isn't native to the area.
4. A scientist observes that a region covered by permafrost a few years ago has now thawed. How could this trend be related to the use of fossil fuels?
A. Soil thaws more easily as it becomes more acidic.
B. Factories using fossil fuels generate heat.
C. Particulate matter covers and warms the ground.
D. Greenhouse gases trap more heat in Earth's atmosphere.
answer all of them
1. B. Land subsidence happens when the increased demand for water causes the levels of the water table to lower. As human population increases, the demand for water also increases, leading to overuse of groundwater resources and eventually causing the land to sink or subsidence.
2. A and E. Monitoring water quality and vegetation are related to standards and measurements issues in land reclamation. B, C, and D are related to funding, permit compliance, and environmental concerns, respectively.
3. D. Greenhouse gases trap more heat in Earth's atmosphere, leading to a warming trend that can cause permafrost to thaw.
4. D. Greenhouse gases trap more heat in Earth's atmosphere, leading to a warming trend that can cause permafrost to thaw. The use of fossil fuels, which release greenhouse gases such as carbon dioxide and methane into the atmosphere, contributes to this warming trend.