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ENSC TEST TWO GCSU (QUIZZES & ANS) GRADED A+
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ENSC TEST TWO GCSU (QUIZZES & ANS) GRADED A+
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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
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