Essays on Soil

Discussion The process of consolidation is often confused with the process of compaction. Compaction increases the density of an unsaturated soil by reducing the volume of air in the voids. Meanwhile, Consolidation is a time-related process of increasing the density of saturated soil by draining some of the water out of the voids. According to…

Microinstructions are consumed in smaller quantities and are present in plant tissue on the order of parts per million (pump), angina from 0. 15 to 400 pump DMS, or less than 0. 04% Only three other structural elements are required by all plants: carbon, hydrogen, and oxygen. These nutrients are supplied by water (through rainfall…

Agenda 21 is composed of 40 chapters that identify each challenge and propose simple realistic solutions towards sustainable placement which is: meeting the needs of the present without compromising the ability of future generations to meet their own needs. Section One: Social and Economic Dimensions Chapter 1 Preamble to Agenda 21: No nation can secure…

Introduction Background of the Study Pechay (Brassica rapa chinensis) could grow for almost 15-20 cm tall and have wide leaves (Siemonsma & Piluek, 1994). Pechay would grow under any climate and could be produced throughout the year specially when the provided soil is rich in organic fertilizer and with good drainage. It could be harvested…

Heavy metals (HM) are elements that are known to be dense, usually more than 5g/cm3. They can be classified into groups. The necessary elements that play important role in metabolism of organisms and cells at low concentrations. Examples are; Nickel, Copper and Zinc. These elements become toxic at high concentrations or high doses. The elements…

Living during the Dust Bowl was a challenging experience, with people contending with dirt-induced vision impairment and disorientation caused by powerful winds. When venturing outdoors, individuals had to safeguard their faces and shield their food while eating. Nevertheless, despite these hardships, numerous farmers migrated to the Southern Great Plains in the late 19th century enticed…

Introduction Acid rain is precipitation that contains higher levels of nitric and sulfuric acids. This type of rain occurs as a result of pollution caused by human activities, such as factories, power plants, and cars. The main pollutants that contribute to the formation of acid rain are sulfur dioxide (SO2) and nitrogen dioxide (NO2). When…