At current US reserves, how long will natural gas last? - answer86 years
what size of particulates are the most harmful to human health - answer0.1 - 2.0
microns
The three main problems with fossil fuels are that they are non-renewable, pollution,
and climate change - answer true
as population increases, energy consumption increases - answer true
what is energy - answerthe capacity to do work
what is the form of energy contained in a dam called - answerpotential
A BTU is defined as - answerthe amount of energy required to raise the temperature of
one LB of water by one degree Fahrenheit
the process of two smaller nuclei combining with one larger nucleus - answernuclear
fusion
the process of one larger nucleus dividing into two smaller nuclei - answernuclear
fission
oil and natural gas typically form in what environment - answermarine life preserved at
the bottom of deep lakes
which fossil fuel contains ash - answercoal
how many ranks of coal are there - answer4
which coal rank has the highest heating value - answeranthracite
which is more expensive, $100/ton of coal or $3/mcf of natural gas - answercoal
what is work - answerforce x displacement
a power plant produces 50 MJ of useful energy and 200 MJ of wasted heat. what is the
efficiency? - answer20% (50/250)
what is the main use for petroleum - answertransportation
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R247,04. You're not tied to anything after your purchase.