ENVR 1301-Cristina Contreras

  Natural resources are materials from the earth to maintain and support peoples daily needs in life. The most important resources include air, sunlight, water, soil, stone, plants and fossil fuels. Conservation is needed to care for these resources so all living things in the economy can benefit from then now and in the future. The way I would like to elaborate natural resources in anything that is found in nature can be used by other living things is a natural resource. There are two types of natural resources in the world the first one is renewable and the second one in non renewable resource. The primary difference is that renewable resources are continuous and can not be exhausted after consuming many and many times. Non renewable resource is a resource that can not be immediately replaced once they are completely utilized. Non-renewable resources are more fragile. These are some of the main differences as well between the two resources. Non-renewable energy has a comparativel...

      I have written two demographic profiles that include, but are not limited to: United States of America Birth rate: 11.0 births/1000 population Death rate: 10.0 deaths/1000 population Population growth rate: 0.1% Life expectancy for males and females: 75,80 Fertility rate: 1.6 Gross National Income (GNI): 66,060 According to the U.S. Census Bureau, blacks, Asians, Hispanics and other racial minorities will make up a majority of the population by the year 2050. When asked about the impact this change will have on the country, about a third of adults say this will be either very (17%) or somewhat (18%) good, about a quarter say it will be very (15%) or somewhat (8%) bad, and 42% say this change will be neither good nor bad. Nonwhites are about twice as likely as whites to say having a majority nonwhite population will be good for the country: 51% of all nonwhite adults – including 53% of blacks and 55% of Hispanics – say this, compared with 26% of whites. About three-i...

     The biosphere consists of all living layers which consumes Earth and make plant and animal life possible. In other words, the biosphere is the part of Earth where life exists. The biosphere contains biotic and abiotic components and there are interactions between living organisms and physical environmental.  The biosphere provides all the necessary requirements for a living condition on Earth.  Parts of the  lithosphere ,  hydrosphere , and  atmosphere  make up the biosphere. The  lithosphere   is the outermost layer of the Earth's crust; essentially land is part of the lithosphere. The  hydrosphere  is composed of all the areas that contain water, which can be found on, under, and over the surface of Earth.   Living organisms are required to adapt to the environment of the biosphere. The biosphere is home to biodiversity within ecosystems while providing a reliable source of food on...

  My activity for declaration 2.2 is based upon the glacier Drangajokull in the West Fiords of lceland. Drangajökull is Iceland’s fifth largest glacier, the most northern part of Iceland.  The glacier’s highest peak, Jökulbunga, rises 925 m above sea level, Drangajökull is the only Icelandic glacier which lies entirely below 1000 m altitude and its lowest point is at around 140 m above sea level. Drangajokull is  known to act different in comparison to other countries. It goes through cycles of 50-60 years during which it grows and recedes. Only the first few years of the cycle are a growing period, followed by a receding period of several decades. Scientists have not been able to fully explain these periods, as they seem to be independent of weather and climate. The last period of growth came just after the year 2000. In a case study by the AGU journal Geophysical Research Letters used bacteria and algae preserved in lake sediments to reconstruct temperature changes over...