This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Coal exploitation gives a better return on investment than other fossil fuels. What will be an ... (Read 91 times)

asd123

  • Hero Member
  • *****
  • Posts: 557
on: Jul 28, 2018
Coal exploitation gives a better return on investment than other fossil fuels.
 
  What will be an ideal response?

Question 2

Recycling costs energy as well as time.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Carliemb17

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 28, 2018
Answer to Question 1

No, the infrastructure for coal involves much more earthmoving than, for example,
oil production.

Answer to Question 2

True. There are trips for the purpose of recycling, there is the energy cost of
remelting the metals or glass, etc. Overall, however, recycling saves energy.


asd123

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Jul 28, 2018
Thanks


Carliemb17

  • Sr. Member
  • ****
  • Posts: 325
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Fossil of an early invertebrate animal showing bilateral symmetry Fossil of an early invertebrate animal showing bilateral symmetry
The Energy Yield of Fossil Fuels The Energy Yield of Fossil Fuels
Mobilize neck in wavelike motion. Return the head to a neutral position facing upward. Apply ... Mobilize neck in wavelike motion. Return the head to a neutral position facing upward. Apply ...
Global consumption of fossil fuel Global consumption of fossil fuel
Coal deposits Coal deposits
Three metabolic pathways that muscles use to obtain the ATP that fuels their contraction. Three metabolic pathways that muscles use to obtain the ATP that fuels their contraction.
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library