Sunday, October 28, 2012

    In my opinion I said that yes, biofuels impact food production because if it turnes to a fuel than we are not going to get food or able to production or grow food. By using biofuels, like biofuels come from the plants that we grow we can get bacteria and be sick.

   In one study, it said that biofuels realise roughly as much carbon dioxide when burnt as regular gasoline or diesel. But since biofuels crops also sook up carbon dioxide as they grow, they reduce overall emissions as the comparation as fossil fuel.
    Some articles sed that biofuels are good but other sed, that no, same help but other don.t other said that ethanol is often touted as a cleaner- burning gasoline atternative that lessens dependence on oil, biofuel has a large amount of possil fuels some are required to farm and refine it.
   Biofuels impact food producton, is saids that in poor sections of communities across the world by affectting food supply and price.

Monday, October 15, 2012

Pesticides..

      Pesticides are chemicals used to eliminate or control some of te agricultors pests that can damage crops and reduce farm productivity. The most used is insectocides. Many pesticides are known to cause poisoning and damaging the nervous system and potentially cause cancer. We all know that pesticides are dangerous to humans some people cary pesticides in their body..

Monday, October 8, 2012

Feeding The WORLD....

    ~Why is it more food on less land..??
Its more food on less land becouse the farmers feed the people and because farmers grow food for the people....
     ~Why less water should be used..??
 Less water should be used because we are using a lot of water and wastinit too. We should used less water because we need to thing about the future people.
    ~Why fewer chemicals and fertilizer should be used..??
 We have more toxic chemicals in our houses, we need to reduce them because there dangeres for use there dad and they can produce a lot of diseases.
  ~Why it must be done cheaply..??
 It must be done cheaply because we used food and half of that food is wasted or trown away, we need to do it more chaply because we are spending a lot of many like crazy we are not thinking about the future or the future people.
            

        Yes i agree because i think that we are spending a lot of money and weisting too mach water. We need to do it more cheaply for the people or for the future of all of us, and to fewer chemicals and fertilizer to help as for the future and the earth.  

Tuesday, October 2, 2012

Lab exp.. Porosity and Permeability..

 Porosity is space between and permeability is rate of flow. Both are like the same because both have to do with the lab or the experiment. we used Porosity and permeability for the lab because we needed to know how faster and slower was the water flowing and the space between the sediment type, obviously the fastes was gravel because when we put the gravel in the tube there were spaces between because there were rocks..