Nitrogen fixation

2. Introduction Nitrogen fertilizer can aid increase crop production and provide more food for the growing population. Since earlier ages, people has shown preoccupation about soil fertility and soil exhaustion (Strawn, Bohn, & O'Connor, 2015). Some management practices such as manure application or crop rotation were known by Chinese 3000 years ago (Strawn, Bohn, & O'Connor, 2015). However, it was just in the last-century that the crop yield increased dramatically. Improvements of hybrids, soil…

basic food we eat to biogeochemical cycles, if we didn 't have biogeochemical cycles we would no longer have any of the resources that we have now; for example, there is plenty of nitrogen in the atmosphere but it 's all not available until it has been fixed, and that is when the microbes come in and changes the nitrogen in a way that is usable. Humans come in contact with microbes every day there is never a time there are not microbes around and on us only a small percent of microbes are…

Ammonia can be found in waterways through nitrogen fixation, decomposition and human induced factors. Nitrogen fixation is the process in which atmospheric dinitrogen is converted into ammonia by biological processes or high energy environmental events like lightning strikes. Decomposition is the term used to describe the breaking…

Introduction This practical consisted of using a microscope on two different types of samples, human hair and Lily pollen to acquire the basics of using a microscope. Three different types of objective lenses were used (4x, 10X and 40X). Furthermore it gave an insight to particulate matter in the air. Q1. Table 1 below shows the diameter of a human hair under previous stated objective lenses Standard deviation is used in this case to quantify the amount dispersal or variation in the results.…

Practical 3: Enzyme Activity (2.5) Research Question: How does the change of pH affect the rate of decomposition of hydrogen peroxide on the enzyme, catalase? Background Information: Enzymes are globular proteins, which are synthesised by cells in order to perform specific functions. These act as catalysts in chemical reactions and are considered a major factor in an organism as these reaction rates are required to be shortened in order to support life. Catalase is one of the most…

The Amazon Rainforest The tropical Amazon Rainforest covers most of Northwestern Brazil, and extends into Bolivia, Peru, and many other South American countries. It is the world’s largest tropical rainforest and contains at least 10% of the world’s known biodiversity. Over the last 500 years, the Amazon has lost almost 20% of its forest cover, leading to waves of resource exploitation for many species residing there. The rainforest contains 90-140 billion metric tons of carbon and helps to…

Energy Flow and Nutrient Cycling in the Epipelagic Zone of the Ocean Introduction: “Energy Flow’’ is an environmental process that describes the flow of energy through a food chain and attempts to ascertain the relative importance of various individual component species and feeding relationships within a particular ecosystem. “Energy” itself is defined as the ability to do work: All living plants and animals expend energy in their environment. All three laws of thermodynamics apply,…

Water cycle 2. Carbon cycle 3. Nitrogen and Phosphorous cycles 4. Biodiversity III. Impacts of the Water bottle product on the life cycle of water, Carbon, Nitrogen/Phosphorus and biodiversity 1. Water cycle 2. Carbon cycle 3. Nitrogen/Phosphorous cycle 4. Biodiversity IV. Interventions on the environmental impacts 1. Benefits i. Water cycle ii. Carbon cycle iii. Nitrogen/phosphorous cycle iv. Biodiversity 2. Drawbacks i. Water cycle ii. Carbon cycle iii. Nitrogen/phosphorous cycle iv.…

the relationship, but also all of the ecosystems in the ocean. This is especially true in the case of bacteria as a symbiont. Bacteria is very commonly found as a symbiont with other animals of the sea and this symbiotic relationship can result in nitrogen fixing, chemosynthesis, and…

Should Antibiotic Use in Livestock Continue? When we get sick we make a trip to the doctor and get prescribed medicine. One common form of medicine prescribed is antibiotics. In addition, this form of medicine is used in the raising of livestock, but at a much larger quantity at 70% of all antibiotic use (The Overuse). So, what if I told you that too much of that drug can lead to harmful effects in our world? The issue of whether antibiotics should be used in the raising of livestock or not has…