Exam (elaborations)
ENSC TEST TWO GCSU (QUIZZES & ANS) GRADED A+
- Course
- Institution
ENSC TEST TWO GCSU (QUIZZES & ANS) GRADED A+
[Show more]
Seller
Follow
EvaTee
Reviews received
Content preview
ENSC TEST TWO GCSU (QUIZZES & ANS)GRADED A+
non renewable energy Answer - a conserved property that that allows for
changes in position, composition, or temperature of matter
potential energy Answer - energy of position ex food and water behind a dam
kinetic energy Answer - energy of movement ex running or flowing water
list specific example of non-renewable resources Answer - coal, natural gas,
and oil
Explain what makes an energy source non renewable? Answer - energy
sources that will run out and not be replaced in our lifetime
Describe the main types of fossil fuels and how they formed. Answer -
aquatic/swamp biomass decays -> anaerobic decomposition (cover the
remains) -> heat and pressure transform remains in 100 - 500 million years
Explain the environmental impacts associated with exploration, extraction and
use of acid mine drainage Answer - sulfur dioxide and Nitrogen oxide mixed
with water creates sulfuric acid that can cause acid rain
Explain the environmental impacts associated with exploration, extraction and
use of mountain top removal Answer - form of strip mining that clears layers
off the tops of mountains for coal. It can cause disruptions in ecosystems and
pollute water sources
, toxic metals from coal burning Answer - leading source of pollution for mining
areas and mercury escapes causing high mercury levels in ponds and water.
Predators with long lives have been recorded with high levels of mercury
Oil spills Answer - large spills of oil cause animals in oceans to get covered in
oil and lead to issues.
hydraulic fracturing Answer - wells are dug deep in the ground then machines
split the rock surface and inject water and minerals to release the oils and gas
but can lead to contamination in public water sources and earthquakes
explain nuclear fission Answer - nucleus splitting = 1 Uranium ore nucleus
splits the Enrichment spins around and is separated when the 238U sinks and
235U rises but required large machinery
assess the environmental and human risks and benefits of nuclear energy
Answer - -machines require lots of space
-meltdown could lead to large explosion and big radiation exposure
-once U235 is used up it must be replaced and disposed of properly
Describe arguments for alternative energy Answer - -cleaner emissions
-cheap and efficient
-Sun = forever source of energy
-great option for countries without a developed grid
Describe how passive solar energy works and provide examples of its use
Answer - -the building is set up to naturally heat itself with sunlight during the
winter and reject heat during the summer
- ex Greenhouse
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 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 these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller EvaTee. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
56326 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now