Question | Answer |
Development | The construction of buildings, roads, bridges, dams, and other structures. |
Litter | The very top layer of dead leaves and grass. |
Topsoil | The next layer, a mixture of rock fragments, nutrients, water, air, and decaying animal and plant matter. |
Subsoil | Below the topsoil, contains same things as topsoil, although has less decaying animal and plant matter. |
Bedrock | Earth's crust. |
Desertification | The advance of desert-like conditions into areas that were previously fertile. |
Land Reclamation | The process of restoring an area of land to a more natural, productive state. |
Air Pollution | A change to the atmosphere that has harmfull effects. |
Emissions | Particles and gases that are released into the air. |
Photochemical Smog | A thick, brownish haze formed when certain gases in the air react with sunlight. |
Ozone | The gases react in the sunlight and produce a form of oxygen. |
Acid Rain | Precipitation that is more acidic than normal. |
Ozone Layer | A layer of the upper atmosphere about 30 kilometers above Earth's surface. |
Global Warming | Predicts that the increase in carbon dioxide will cause the average temperature to continue to rise. |
Greenhouse Effect | The trapping of heat near Earth's surface. |