Topic > Literature Review - 831

anything affects the growth and development of plants and other living things, but one of the main ones is acid rain. The research that the experimenter did was to aid in testing to see if the pH level of water is an important factor in the growth of a radish plant. The experimenter believes that soil with a neutral pH of 7 will grow more because something with a natural pH of 7 is neither acidic nor basic. Acid RainAir pollution is the cause of acid rain. Factories, power plants and cars burn fuels that release exhaust fumes into the air. “The gases mix with the water in the air, so that even the rain is polluted.” When this water falls to the ground, it damages plants and makes smaller bodies of water (rivers and lakes) unlivable for plants and animals. (Morgan,1999,pg 4) “Acid rain is produced primarily by gases known as sulfur dioxide and nitrogen oxides.” Things like volcanoes, decaying plant material, and sea spray emit sulfur dioxide. Most sulfur dioxide and all nitrogen oxides are produced when various fuels are burned. These acids mix with water vapor to form acid rain. (Morgan, 1999, pg 10) Acid rain mostly affects trees. It weakens trees by washing nutrients from the soil so the trees grow much more slowly. It also releases harmful chemicals from the soil, which are absorbed by tree roots. This causes leaves to drop, and plants need leaves to make food. Acid rain not only damages living things but also stones. Acid rain accelerates the erosion process. Limestone and sandstone are two types of stone that are easily damaged, probably due to the fact that they are light and easy to cut. (Morgan,1999, page 20)Acids and basesThe pH scale measures h...... half of paper ...... to the aquifer.(aquifer-a body of permeable rock that can contain or transmit water underground)Information in bullet points- (Soils4Kids,2012)Plants and cultivation of radish Radish is a plant with a red hue that is nice crunchy and is mainly used in salads. (My personal knowledge) There are two types of radishes: spring radishes and winter radishes. Examples of winter radishes would be radishes such as 'Chinese rose' and 'long black spinach'. These take longer to grow than spring ones. Spring radishes include 'Cherry Bomb' and 'Crimson Giant'. Radishes grow well when they are on “brittle soil” and when the weather is cool. Radishes grow best in a location that receives at least 6 hours of sunlight and in soil with a pH between 5.8 and 6.8. Radishes offer a good source of vitamin C, but are known for their tangy taste rather than nutritional content. (burpee.com, 2013)