ECH5106 Biological Method

Which of the following gas is toxic to methanogenic bacteria?

• carbon dioxide

• Nitrogen

• oxygen

• hydrogen

Which method uses natural or genetically engineered plants to absorb, filter, and remove contaminants from soil and water?

• physical methods

• nanomagnets

• phytoremediation

• chemical methoda

What is bio-remediation?

• Process where organic things are used to break down pollution

• When you use biology to meditate

• When you amend biological things

• Process where you watch bacteria break things down

When you use bio-remediation it breaks down toxins ...

• It makes the area into new soil

• it creates a new substance for fuel

• it detoxifies an area completely or partially

• it creates fuel for algae

Bacteria can be used to clean up_________ in soil

• OIl

• Gasoline

• Pesticides

• All of the above

Myco-remediation is bio-remediation that uses...

• Bacteria

• Plants

• Fungi

• Worms

Phyto-remediation uses what for bio-remediation

• Bacteria

• Worms

• Fungi

• Plants

Plants can be used for bio-remediation because they...

• Use the waste for nutrients

• it binds and extracts

• it uses the toxins and releases them in vapor form

• it transforms them to N2

An example of a chemical, if in high concentrations, might not be bioremediated due to toxicity of chemicals is

• lead

• cadmium

• both

• neither

Still today oil is found from the Exxon Valdez spill. This remaining oil

• will never breakdown

• will breakdown slowly

• will breakdown quickly

• will be bioremediated this year by the government.