Author Question: What are the positive and negative environmental impacts of using ethanol as a gasoline supplement? ... (Read 196 times)

burton19126

  • Hero Member
  • *****
  • Posts: 532
What are the positive and negative environmental impacts of using ethanol as a gasoline supplement?
 
  What will be an ideal response?

Question 2

What is the purpose of a barrage dam?
 
  What will be an ideal response?



mmpiza

  • Sr. Member
  • ****
  • Posts: 354
Answer to Question 1

Ethanol is a gasoline additive that can reduce the amount of oil used, however it is a hydrocarbon, so burning it produces carbon dioxide, however it is equivalent to the carbon dioxide absorbed by the plant during growing, so the net effect is carbon neutral in the long term. Negative impacts include agricultural land taken out of production for food, water and fertilizer requirements; single crop farming requires use of increased pesticides, and there can be loss of wildlife habitat.

Answer to Question 2

A barrage dam traps water from incoming tides behind and uses it to generate power by releasing the water through turbines.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

burton19126

  • Hero Member
  • *****
  • Posts: 532
Both answers were spot on, thank you once again




 

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

For a complete list of videos, visit our video library