Definition of Eutrophication

What is eutrophication?

Sodium Dichromate (Chromium) and various effects on the environment?

So I have been doing research for a project and am having some difficulty getting started on a particular problem relating to sodium dichromate (Chromium). Specifics: -120 km of road has Sodium Dichromate spilled on it. -Possible run off of Sodium Dichromate into side ditch which lead to dugouts. -Dugouts filled with rainb ...continues

Sodium Dichromate (Chromium) and various effects on the environment?

I have searched the web, including HSDB, and EPA.. but am having difficulty finding some question regarding Sodium dichromate (Chromium (VI)) on cattle, fish, humans, and the enviro. The questions I have are: 1.) Finding the methods of calculating or assessing the effects of Sodium dichromate 2.) Is there also an anal ...continues

Mechanism of action of Sodium Dichromate upon ingestion

I am having a great deal of difficulty summerizing the mechansim of action of sodium dichromate upon human ingestion. I would greatly appreciate help with this topic. Also what does the interaction of copper sulfate with sodium dichromate do in a water situation? Does it change Cr (VI) to Cr (III)?

Provide a Brief Summary

1. Which do you consider to represent the greatest advancement: Quantum mechanics or discovering the shape of the DNA molecule--- and why? 2. Contrast the differences of the pre-Galileo concept of the universe and the Galilean concept. Discuss some of the impediments (and dangers) in the promulgation of his theories? Disc ...continues

Leachate- from landfills and groundwater

Well I am studying for my groundwater and soil class, and came across a section in my textbook that is not explained very well. It talks about leachate from landfills, but does not go in depth about what it is, and it's effects on groundwater. Since I am studying for my finals now, time is of the essence... can anyone expl ...continues

Cairo Egypt

I am researching the city cairo, egypt on their school system and if any crime/drugs/gangs. Thanks for your help

Disturbances in Chemical Cycles

Deforestation is cited as one example of a disturbance in the carbon cycle. Give and describe other examples of a disturbance in other chemical cycles.

Global population and Neo-malthusians

Outline your perspective on global population issues and your alignment with neo-Malthusians or neoclassical economists. Consider and respond to the following questions: • Where do you believe the world stands in terms of global population? • Is the current global population exhausting the Earth's carrying capacity or will ma ...continues

Research the introduction of any two alien species into the United States and the ecological effect(s) they have had on local plant and animal populations. If the introduction was intended , explain why. If unintended, explain how it occurred. Explain why these species are so invasive.

You have your own websites , which has quite a following among the environmentally-conscious, as well as students assigned to research in your area. Each week , you post a short feature article, either a hot topic or educational column for your readers. Readers are welcome to ask q ...continues