Plants are the organisms that carry out this chemical reaction and so it is crucial to understand what impacts this process in both terrestrial and aquatic environments. This experiment considers the photosynthesis of aquatic plants and how various concentrations of CO2 effect this process. This was done by measuring the oxygen produced by Elodea Densa submerged in various concentrations of
Oxygen occurs freely in the air, trapped in the earth’s crust as chemical compounds or dissolved in water. Oxygen is also used during decomposition, combustion and oxidation. The circulation of oxygen is through four main reservoirs including the atmosphere (air), the biosphere (living things), hydrosphere (water) and the lithosphere (earth’s crust). In the oxygen cycle, the main dynamic factor is the photosynthesis which is the process whereby green plants and algae make their own food by use of solar energy, water, and carbon dioxide to give off oxygen as a by-product. Hence, for oxygen to remain in the atmosphere, it has to circulate through various forms of nature which is fundamentally termed as the oxygen cycle.
A life cycle assessment is an analysis of a product for it’s environmental impact. The “life cycle” of a product is every phase a product goes through, from the time it is taken out of the Earth to the time it is returned to the Earth. The assessment generally consists of four stages: defining the scope, an inventory analysis, an impact assessment and the interpretation of the results of the other stages. Life Cycle Assessments are becoming more common because of the growing concern for environmentally friendly products. Life cycle assessments are used for their depth of analysis into the different phases of a product, providing a more complete picture to the environmental impact.
Chloroplasts are organelles that carry on photosynthesis; carbon dioxide diffuses into the chloroplasts in the leaves (Mader, S. 2010). Sugar and oxygen are released during the process. In order to photosynthesize, plants depend on light energy from the sun. The rate of photosynthesis will increase or decrease depending on the colour of light being absorbed, blue light results in the most photosynthesis occur and green light results in no photosynthesis occurring. Oxygen is released during the day and taken in at night through the stomata, which are small openings on the surface of the leaf.
Environment includes all the physical and biological surroundings and their interactions. Thus, in order to study environment one needs knowledge inputs from various disciplines:- Life sciences including botany, zoology, microbiology, genetics etc, help in understanding the biotic component and their interactions. Subjects like physics, chemistry, geography, geology etc helps in understanding the physical and chemical structure of the abiotic components and energy transfer and flow. Mathematics, statistics and computer science serve as effective tools in environmental modeling and management. Economics, sociology and mass communication provide inputs for dealing with the socio-economic aspects associated with various developmental activities.
These are some of the reasons to look alternative fuels such as biofuels. More focus and research should be done in making biofuels a more prevalent alternative fuel source to oil. The first benefit is that biofuels are a renewable energy source and be grown domestically. Second, a form of biofuels called biodiesel can reduce vehicle emissions and lower energy efficiency for vehicles and lastly can tackle global warming. Biofuels are current crops or waste products used as a fuel source in a combustion reaction where energy is produced with carbon dioxide and water.
In some case “human activities have been and are continuing to alter the environment on local and global scales. Many of these changes are leading to dramatic changes in the biotic structure and piece of ecological communities, either from the mislaying of species or from the introduction of exotic species. Such alterations can preferable change the ways in which ecosystems work. Altered biodiversity has led to widespread cover for a number of both market (e.g., ecotourism, “mining” for medicines) and non-market (e.g., ethical, aesthetic) explanation” (Barbier et al. 1995, Kunin and Lawton 1996, Schwartz et al.
This is basically a team that makes up the environmental audit and each of them have specific roles of responsibility to ensure that whatever type of audit is being carried out is effective. This includes the lead auditor, auditor, client and technical expert to mention a few . In a synopsis, there are many environmental auditing types but this essay looked into five of them in relation to social, economic and biophysical environment. It looked into waste management auditing, environmental assessment, environmental management and Sustainability Auditing and Corporate Social Responsibility and roles, responsibilities and activities. It has shown how these types of environmental auditing help to manage and monitor the environment.
Monitoring the amount of carbon present in the atmosphere is difficult as the values can increase through process such as combustion, wildfires, volcanic eruptions, burning of fuels, production of biomass, volcanic eruptions etc Oxygen is found in atmosphere, biosphere and lithosphere.The Oxygen Cycle begins with photosynthesis whereby plants convert carbon dioxide into oxygen as a by product. The oxygen is used by humans and animals during respiration and during various decay mechanisms. In essence, the study of earth system is imperative because the root of all the environmental changes lie in the metamorphosis of the earth coupled with the anthropogenic changes. It is important to study each component individually as well as together to be able to see how they interact with each other in the scenarios of variations in nature and human influenced anthropogenic changes. It is important to know that these complex interactions between different spheres of the earth system through biogeochemical cycles ensure the proper functioning of the planet