Questions And 100% Verified Answers|
Latest 2026/ 2027 Update| Graded A+
Run-of-River plants - correct answer --less costly
-less ecologically disruptive
-dependent on sustained flow
example: Glen Canyon Dam ,Colorado River(peak is removed: problem
because organisms used to depend on that)
advantages of hydropower - correct answer --fossil fuel not needed
-no pollutants emitted
-energy cheap to produce (after expense of plant construction)
-power produced can be matched to demand
-dams also used for flood control
-water retention (recreation & water supply)
,disadvantages of hydropower - correct answer --effect on environment
and human communities (Three Gorges Dam, China)
-Ecosystem alteration & flow changes
-peak flows no longer seasonal
-sediment accumulation & transport altered
-temperature and oxygen in stream changed
Solar Impulse Video - correct answer --solar powered plane finishes
record setting journey from CA to NYC
-can fly all day and night
Visitor's Center at Zion National Park, Utah - correct answer -heated
almost entirely by solar energy
Maine Solar House - correct answer -a house sustained by solar power
Google currently uses renewable energy to power _____% of
operations - correct answer -35%
,Google understands investing in renewable energy is a _________
__________ - correct answer -business opportunity
What region is ideal for solar power use - correct answer -Southwestern
US
Solar Race Cars - correct answer -run solely off solar power
Solar advantages - correct answer --free/renewable
-no emissions
-roof installations / space options
-20,000 jobs now and increasing 35% per year
Solar Disadvantages - correct answer --high start up costs ($10,000-
$20,000 for home to save hundres $/year)
-high cost of electricity compared to coal produced electricity
, -daylight requirements
-geographical limitations
-hazardous materials used in construction
Geothermal Energy - correct answer -heat energy generated & stored in
Earth Energy not originating from the Sun
Geothermal Electricity - correct answer -in a dry-steam power plant,
underground hot water and steam are used to generate electricity
Geothermal Energy in Iceland - correct answer -Because of its
geographical position this place in the north can produce this type of
energy, and it has lots of it
Where are geothermal power plants sufficient and common? - correct
answer -Western States