UV-B radiation is also absorbed by the ozone layer of the atmosphere and only about 6% reaches the Earth's surface, but it causes the main undesirable effects - burns and skin tumors, diseases of the eyes, depression of the immune system. Finally, UV-A radiation is slightly attenuated by the atmosphere, but the biological effect produced by it is approximately 1000 times weaker than that of UV-B radiation. Given the significant impact of UV radiation on the biosphere and human health, it is extremely important to carry out its constant monitoring, as well as to study the factors which determine the arrival of UV radiation to the Earth's
Intrinsic factors and extrinsic factors, both contribute to this process. As discussed earlier, UV-induced damage to the DNA causes a poor renewal of the skin. When exposed to harsh sunlight, an individual is also exposed to the UV light that comes along with it. Excessive exposure can cause premature aging in certain individuals and also is observed as severe pigmentation and sunburns as well. The antioxidants, namely vitamin E and vitamin C are majorly targeted by the UV light and thus, reduce the antioxidant capacity of the epidermis on prolonged exposure.
Ultraviolet waves can cause many type of damages such as skin damage, eye damage, and damage to cells. However the most harmful one is skin damage. Ultraviolet waves can cause skin damage by the sun. As the sun gets direct contact with the skin it becomes to dangerous and start to burn the skin which causes skin damage. Scientist believes getting older can also cause skin damage.
Martian soil: Astronaut Mark Watney is able to grow crops using the water he made and Martian soil. In reality, the soil on mars does contain the right nutrients for plants to survive there. However, the amount of nutrients in the Martian soil varies depending on the location, so additional nutrients might be needed. Besides this, the Martian soil contains a lot of metal. Crops grown in Martian soil might be toxic, so this can be
Did you know that the 1981 eruption of Mount Saint Helens caused nearly $1 Billion of damage to the surrounding areas. Volcanoes cause damage whenever they erupt, burning things and causing the air to be saturated with sulfuric acid, which is harmful to humans and animals. Despite the negative effects, volcanoes can also be beneficial. Volcanic ash contains nutrients that help plant
…, but the single strongest factor in determining skin pigmentation is exposure to ultraviolet radiation” (Larsen 125). Similarly, the authors of the article “Skin Deep” noted that people with dark skin occupy areas most near to the equator, whereas people with light skin occupy areas near the poles. Furthermore, the article went to great lengths in describing how dark and light skin respond to UV radiation in that dark skin has more melonin to protect itself against harmful UV rays but cannot produce sufficient vitamin D, on the other hand, lighter skin lacks melonin sufficient enough to protect itself against harmful UV rays but can better produce vitamin D. This issue is correspondingly described in the text on page 142. In fact, on page 139, the text relied on Jablonski and Chaplin’s work to explain skin color, exposure to UV radiation, sun protection factors, melanocytes, melonin, and skin reflectance to address the topic of skin color just as the authors did in the article, so, the text and the article complement and support each other. Both discussions boiled down to how near or far people are from the equator or the poles.
During daylight, as it was expected, in the Upper middle floodplain atmospheric CO2 concentration rates are lower, this because through photosynthesis the large amount of plants in the area absorb CO2 from the air. Nevertheless, in the deforested area, CO2 levels during daylight were noticeably higher than the upper middle floodplain, this because as there almost no plants and CO2 is no longer transformed through photosynthesis. Moving on, around 16:00 and 17:00 daylight fades away, and the respiration process becomes predominant again, though plants as metabolic product of respiration produce CO2. So the upper middle floodplain has higher amounts of CO2 concentration levels, as more plants are in the
In mussels, crabs and tunicates vanadium strongly bioaccumulates which can lead to concentrations of about 105 to 106 times greater than the concentrations found in seawater. Vanadium causes the inhibition of certain enzymes with animals which has several neurological effects. Next to neurological effects, vanadium can cause breathing disorders, paralyses and negative effects on the liver and kidneys. Vanadium compounds are not regarded as serious hazard, however, workers exposed to vanadium peroxide dust were found to suffer severe eye, nose and throat irritation. The uptake of vanadium by humans mainly takes place through foodstuffs, such as buckwheat, soya beans, olive oil, sunflower oil, apples and eggs.
It produces a toxin that kills caterpillars and other insect larvae. The other is herbicide tolerance or resistance such as glyphosate which kill any green plant but become harmless when it comes in contact with soil. The last one is that it’s disease resistant because corn crops may have lower levels of Mycotoxins which is a substances produced by fungi growing on insect-infested. With insects holes that comes with a fungi in the plant tissue , but it is few which makes it hard for the fungi to break the tissue and produce