14.If a forest ecosystem is removed through clear-cutting, many species of organisms that lived in that ecosystem disappear. Their loss is due to ________________________.

15.When fossil fuels are burned, they produce ________________, the main greenhouse gas responsible for global warming trends.
16.By switching from fossil fuels to solar, wind, hydroelectric, and other renewable sources of energy, humans can ___________ the trends in biodiversity loss.
17.Depletion of the ____________ in the atmosphere has slowed because of an international ban on the manufacture of chemical compounds used in refrigerators and aerosol spray cans.
18.Fertilizers and pesticides applied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland. This is an example of _________________ pollution.
19.Before beginning any land development project, people should carry out a(n) ___________________ analysis to consider all of the potential impacts of the project on the local ecosystems.
20.If changing conditions lead to decreased oxygen levels in the stream, the carrying capacity of the stream for the trout will decrease. Oxygen level in water is therefore a(n) _____________ with respect to the number of trout that a particular stream can support.
21.To conserve materials and energy, it is best to recycle as much solid waste as possible. Recycling slows the rate of waste going into ______________.
22.Disturbance of an ecosystem by human activity often has negative effects on the number of species, which is a measure of its __________________.

I'll be glad to check your answers.

If you have a word list, please post it too,

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Habitat destruction

14. The loss of species in a forest ecosystem that has been clear-cut is due to the destruction of their habitat. Clear-cutting involves the complete removal of all trees in an area, which removes the shelter, food sources, and nesting sites that many organisms rely on to survive.

To get this answer, you would need to understand the concept of clear-cutting and its impact on forest ecosystems. By examining the process of clear-cutting and its consequences, you can determine that the loss of species is a result of habitat destruction.

15. When fossil fuels are burned, they produce carbon dioxide (CO2), which is the main greenhouse gas responsible for global warming trends.

To get this answer, you would need to understand the combustion process of fossil fuels and the composition of their emissions. Fossil fuels contain carbon, and when they are burned, carbon dioxide is released into the atmosphere, contributing to the greenhouse effect and global warming.

16. By switching from fossil fuels to solar, wind, hydroelectric, and other renewable sources of energy, humans can mitigate or reduce the trends in biodiversity loss.

To get this answer, you would need to understand the impact of fossil fuel use on biodiversity loss and the potential benefits of renewable energy sources. By transitioning to renewable energy, the negative environmental impacts associated with fossil fuel extraction, combustion, and pollution can be minimized, leading to a reduction in biodiversity loss.

17. Depletion of the ozone layer in the atmosphere has slowed because of an international ban on the manufacture of chemical compounds used in refrigerators and aerosol spray cans.

To get this answer, you would need to understand the concept of ozone depletion and the actions taken to address it. The chemicals referred to are chlorofluorocarbons (CFCs) and other ozone-depleting substances (ODS), which were widely used in various industries. Through international agreements like the Montreal Protocol, the production and consumption of these substances have been limited, leading to a reduction in their atmospheric concentrations and a slower depletion of the ozone layer.

18. Fertilizers and pesticides applied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland. This is an example of nonpoint source pollution.

To get this answer, you would need to understand the different types of pollution and how they can affect ecosystems. In this case, the application of fertilizers and pesticides to farm fields represents a nonpoint source of pollution because the contaminants are not originating from a single identifiable source like a pipe or factory. Instead, they are carried by runoff from the fields into the Chesapeake Bay, causing pollution.

19. Before beginning any land development project, people should carry out an environmental impact analysis to consider all of the potential impacts of the project on the local ecosystems.

To get this answer, you would need to understand the importance of assessing the environmental impacts of land development projects and the methods used to evaluate these impacts. An environmental impact analysis involves assessing the potential consequences of a proposed project on the environment, including factors like habitat loss, water and air pollution, and disturbance to wildlife populations.

20. If changing conditions lead to decreased oxygen levels in the stream, the carrying capacity of the stream for the trout will decrease. Oxygen level in water is therefore a limiting factor with respect to the number of trout that a particular stream can support.

To get this answer, you would need to understand the concept of carrying capacity and its relationship to limiting factors. The availability of oxygen in the water is a critical factor for trout survival. If the oxygen levels decrease, it can become a limiting factor that reduces the carrying capacity of the stream, meaning it can support fewer trout.

21. To conserve materials and energy, it is best to recycle as much solid waste as possible. Recycling slows the rate of waste going into landfills.

To get this answer, you would need to understand the benefits of recycling and its impact on waste management. Recycling reduces the need for extracting raw materials, saves energy and resources in the manufacturing process, and reduces the amount of waste that ends up in landfills. By recycling as much solid waste as possible, the rate at which waste enters landfills is slowed.

22. Disturbance of an ecosystem by human activity often has negative effects on the number of species, which is a measure of its species richness.

To get this answer, you would need to understand the concept of species richness and the potential consequences of ecosystem disturbance. Human activities such as habitat destruction, pollution, and introduction of invasive species can disrupt ecosystems and lead to the decline or loss of species. The number of species within an ecosystem, known as species richness, is a measure of biodiversity and can be negatively impacted by human disturbances.