ENVR 1301 -Fall 2019

Country Name Canada Birth Rate 11 Death Rate 8 Population growth rate (rate of natural increase) 0.3% Life expectancy for males and females 20 for Male – 22 for Female Fertility rate 1.5 Gross National Income 45,750 Country Name Afghanistan Birth Rate 35 Death Rate 7 Population growth rate (rate of natural increase) 2.8% Life expectancy for males and females 12 for Male – 14 for Female Fertility rate 4.8 Gross National Income 2,000 Comparison and contrast of the two countries with one another Canada and Afghanistan differ in many ways. Their birth rate, here consider as the number of births every 1,000 people in a year, is very different. While Canada has a low birth rate, Afghanistan has a hi...

Energy and Energy in Ecosystem (From Freedman,2018, pp. 64-66, 69-76) Biodiversity and how it is organized (From Freedman, 2018, pp.119-122, 123-129) Major Biomes (from Freedman,2018, pp. 133-151) Biosphere and Interconnections Energy is an essential element for ecosystems. Without energy, ecosystems are not able to work properly. Every organism needs to use some form of energy for their own function. In ecosystems, the energy usually come from the sun and it is synthesized by primary producers. This energy is after “transferred” and flow from primary producers to consumers, to consumers to decomposers and to decomposer to primary producer again. So, the ecosystem food web generates also a flow of energy. This energy is incorporated into biomass only in a certain percentage that is called productivity. According to the Second Law of Thermodynamic, part of the original energy is lost during the process and become heat (Freedman, 2018).  Energy flows only thank...

Disclaimer: For this activity, I should use three of my water bill. Since my water bill is included in my rent, I do not receive water bills. For this reason, I will use my friend’s water bills. Average the number of gallons used across all three bills May: 2,244 Gallons of water June: 4,489 Gallons of water July: 5,237 Gallons of water Average: 2,244+4,489+5,237 =12,060/3 months =4,020 gallons/month on average. Average household water use per month for the number of people in your house 4,020/1 = 4,020 gallons/person/month Person per day amount of water use (on average)             4,020/30 =134 gallons day/person Name of Water  Calculator URL My Friend Per Person Usage San Antonio Water System NA 134 gallons day/person Water Smart San Diego County Water Authority https://www.watersmartsd.org/water-calculator 7,080 gallon yearly/365 ...

Pré de Bard Glacier (Cerutti, 1992) Pré de Bard Glacier (Giovannini, 2008) Pré de Bard Glacier (Google Earth, 2019) Problem Glaciers around the world are melting causing enormous consequences.  The retreat of glaciers is the hydrogeological phenomenon where the glaciers decrease in thickness and surface. It is a process that influences the availability of fresh water for irrigation and for domestic use, excursions in mountain, animals and plants that depend on the melting of the glacier and, in the long term, on the level of the oceans. The phenomenon started in the 1900s because of human activities. The industrial revolution opened to manufacturing production, but also to the increase of greenhouse gasses into the atmosphere. The increasing of greenhouse gasses raised the temperature, causing the ice melting (Hancok, n.d.) It is not just the Arctic ice that is melting. Glaciers have been in continuous withdrawal for almost all the regions of the Alps for years....

Problem We talk about air pollution when the amount of particles and gas in the atmosphere reach harmful concentration. The consequences of air pollution affect people as well as the environment. Air pollution caused around of 4.2 million premature deaths in 2016.   In fact, air pollution lead to “higher rates of cancer, heart disease, stroke, and respiratory diseases such as asthma” (Essick, 2019) as well as being one of the causes of global warming. The energy coming from the sun is absorbed by the earth and only after released. However, pollutants as Carbon Dioxide (CO2), Methane (CH4), Nitrous Oxide (N2O) and Sulfur Hexafluoride (SF6), also called greenhouse gasses, trap in the atmosphere the heat released by the earth. This means that instead of being released, solar energy warms the earth again. Investigation In our everyday life, many activities that we do result in emission in greenhouse gasses. Some type of actions directly produces Carbon Dioxide or Methan...