The chief danger of radiation is the damage it can cause to living cells. Radiation can damage the DNA inside a cell's nucleus, and if the DNA becomes sufficiently damaged, the cell can become cancerous. Exposure to high amounts of radiation, or lower amounts over a long period of time, can significantly increase the risk of developing cancer.
There are a number of different types of radiation. Ultraviolet radiation is part of sunlight, and can cause skin cancer with enough exposure. Largely, however, the threat from ultraviolet radiation is greatest in areas of the globe where the ozone layer has become depleted. X-rays are also emitted by the sun but absorbed by the planet's atmosphere. Most x-ray exposure occurs as a result of medical exams.
Alpha, beta and gamma radiation are products of nuclear reactions, and all are dangerous to humans. Alpha radiation cannot penetrate the skin, but if a particle emitting alpha radiation is swallowed or breathed in, it can do significant damage to the cells in internal organs. Beta and gamma radiation have suitable wavelengths to penetrate the skin and damage cells inside the body. A radiation source may put out multiple forms of radiation, making any radioactive accidents extremely dangerous for those in the immediate area.Learn More
The biggest disadvantages of deforestation include loss of animal habitats, climate change, soil loss and hydrological factors. Deforestation involves the clearing of massive portions of the earth's forests.Full Answer >
The major drawback of industrial mining is the damage mining operations cause to the environment. Removal of large areas of topsoil can destroy habitats, and the chemicals used in mining operations can leach into the groundwater and pollute the area. Air pollution and radioactive pollution are other possible downsides.Full Answer >
The Oregon Forest Resources Institute lists minimizing forest floor and soil disturbance, greater efficiency and economy for timber harvesting, and providing full-sun conditions for certain types of species as the advantages of clear cutting. The disadvantages of clear cutting are numerous and include a poor aesthetic, habitat disturbance, and increased stream flow and soil erosion, particularly on slopes.Full Answer >
The main advantage of population control seems to be the increase in economic stability and better living conditions, while the most common disadvantages are the difficulty in enforcing such a policy and the lack of success because of this according to a report published by the University of Omaha. There are many other advantages and disadvantages to consider as well.Full Answer >