Nitrate

Rivers and other water sources are being polluted with nitrates, especially the Raccoon River in Iowa. Nitrates are dangerous and can come from rural farms to urban cities. Nitrates come from fertilizers used on farms. Rain and storms cause the nitrates to flow into rivers and creeks. Many farmers do not know this. “The river was just water, as far as we were concerned”, says Seth Smith, an Iowan farmer. Most farmers did not know that the nitrate levels in rivers were important. These levels…

week over the next 4 weeks. Pot A (phosphate limitation group) was given a phosphate reduced Hoagland’s solution, whereas Pot B (nitrogen limitation group) was watered with nitrate reduced Hoagland’s solution. Pot C (control) is the control plant as it was given standardized fertilizer regime using normal concentration nitrates and phosphates. All plants were grown in a growth chamber at a temperature of 22°C, the light intensity of 180 ue, photoperiod of 16 hours and humidity of 70%.…

on the Chlamydomonas population. Alternative Hypothesis: The presence of blue-green algae will have an effect on the Chlamydomonas population. Community Ecology Experiment Null Hypothesis: Nitrate concentration will not have an effect on chlorophyll levels in the Campus Lakes. Alternative Hypothesis: Nitrate concentration will have an effect on chlorophyll levels in the Campus Lakes. Methods Population Experiment First, nine test tubes were obtained. One test tube was used for the control…

creek. The creek was a safe place for the animals living in the creek. The water speed of the creek was normal not to fast and not to slow. That's why I think the creek is not polluted. There was some nitrate in the creek. The nitrate absorbs oxygen and that's not good for the animals. The nitrate is actually dangerous to the creek and the critters living there. It is also dangerous to the water flow. It is also dangerous for the environment. The phosphates are found in some detergents but not…

Approximately twelve percent of American’s suffer form some form of a migraine ("Migraine Facts - Migraine Research Foundation"). Around six to seven percent of men, and about twenty percent of women experience a piercing headache that leaves them on bed rest for four to six days throughout the year (Mitchell, et al.). This particular condition causes over “112 million bedridden days per year” (Evans, et al.). Treatment sought out by individuals who experience migraines “exceeds $24 billion…

Hypothesis: Nitrate concentration will not have an effect on chlorophyll levels in the Campus Lake. Alternative Hypothesis: Nitrate concentration will have an effect on chlorophyll levels in the Campus Lake. Methods Population Experiment First, nine test tubes were obtained. One test tube…

specimen jar. A water sample was collected to measure the dissolved oxygen in the water, phosphate in the water, nitrate in the water and the hardness of the water. Three hach kits were used to measure three different properties of the water of the stream. The Dissolved Oxygen hatch kit was used to measure the dissolved oxygen in the water. The Nitrate hach kit was used to measure the Nitrate (NO_3) in milligrams per liter. The Phosphate hach kit was used to measure the Phosphate (PO_4) in the…

was determined that when the nitrogen is provided to the spores in the form of nitrates or nitrites, germination of fern spores can be inhibited or completely stopped by using higher concentrations (Milan and Whittier, 1990). On the other hand, when the nitrogen came from ammonium, the germination of fern spores increased (Milan and Whittier, 1990). The experiment determined that the effects of nitrogen from nitrates/nitrites and ammonium had the opposite effects on the germination of the fern…

tests and mediums to determine the unknown bacteria.This medium are use to test the metabolic characteristics of the unknown bacteria. In order to identify the unknown bacteria from other bacterias the following medium was used: MSA plate, SIM plate, nitrate reduction test Nutrient gelatin and Urease broth. For Metabolic tests, only Catalase test were performed on the unknown bacteria. These tests were best use gram negative bacteria to indicated what the unknown microbe is. For the Catalase…

The pH of something can be determined by using the specific pH scale. The scale is based off of numbers ranging from 0 to 14. The lower the number is the more acidic something will be and the higher the number is the more basic something will be. It is important to note that 7 act as the neutral number, where neither it is considered acidic of basic (5). It is found that rain water that is unpolluted is coincides with carbon dioxide and has a pH of 5.6. Often, the pH around the world of…