Environmental Studies

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A heat engine ____. a. transfers energy from a cold sink to a hot sink b. is 100 efficient c. ... Started by mia	1 Replies 51 Views	Jul 21, 2018 by wshriver
The spark ignition internal combustion engine developed by Nikolas Otto in 1876 uses ____ strokes in ... Started by ashley	3 Replies 36 Views	Jul 21, 2018 by bubulittle310@msn.cn
Which type of engine has the simplest design, but loses about 25-30 of its unburned fuel to the ... Started by renzo156	1 Replies 16 Views	Jul 21, 2018 by parker125
The compression ignition engine, or diesel engine, operates on the physical concept that gases will ... Started by Collmarie	1 Replies 51 Views	Jul 21, 2018 by Ahernandez18
A refrigerator uses a(n) _______________ type of heat engine. Fill in the blank(s) with the ... Started by jenna1	1 Replies 20 Views	Jul 21, 2018 by Ashley I
Organisms that can derive energy from sunlight are called autotrophs, meaning self-feeders. ... Started by schs14	1 Replies 72 Views	Jul 21, 2018 by LegendaryAnswers
With the exception of the deep sea hydrothermal vent communities, all energy flow in both aquatic ... Started by urbanoutfitters	1 Replies 68 Views	Jul 21, 2018 by Harbringer
Photosynthesis uses solar energy and oxygen to create sugars with carbon dioxide as a byproduct. ... Started by misspop	1 Replies 57 Views	Jul 21, 2018 by marict
Living things that derive their energy by consuming other organisms are called ____. a. ... Started by Anajune7	1 Replies 54 Views	Jul 21, 2018 by aham8f
All food chains start with ____. a. detrivores c. primary consumers b. unique producers d. ... Started by CORALGRILL2014	3 Replies 55 Views	Jul 21, 2018 by brbarasa
The glucose molecules produced by photosynthesis are joined together to form molecules called ... Started by ENagel	1 Replies 114 Views	Jul 21, 2018 by blfontai
Another name for a secondary consumer is a(n) ______________. Fill in the blank(s) with the ... Started by abc	1 Replies 22 Views	Jul 21, 2018 by irishcancer18
The total dry weight of an organism is its _____________. Fill in the blank(s) with the ... Started by clmills979	1 Replies 15 Views	Jul 21, 2018 by juiceman1987
The heating value of biomass increases with a decrease in moisture content. Indicate whether the ... Started by fnuegbu	1 Replies 28 Views	Jul 21, 2018 by eliasc0401
Corn production in the United States represents the largest amount of crop waste. Indicate ... Started by shofmannx20	1 Replies 33 Views	Jul 21, 2018 by Juro
Methane has a heating value of about ____ kcal per gram of fuel and plant biomass has a heating ... Started by humphriesbr@me.com	1 Replies 49 Views	Jul 21, 2018 by tofugiraffe
The cost and heat content of woody residue biomass is comparable to that of ____. a. oil c. ... Started by cherise1989	1 Replies 39 Views	Jul 21, 2018 by jsm54321
You would need to burn about ____ corn biomass to equal the average heat output of coal. a. 32 ... Started by haleyc112	3 Replies 26 Views	Jul 21, 2018 by Brummell1998
Branches and trimmings of trees in the practice of logging are known as _______________ and ... Started by Bernana	1 Replies 18 Views	Jul 21, 2018 by juiceman1987
The growing of a perennial dedicated biofuel feedstock is also known as an energy _______________. ... Started by audragclark	1 Replies 24 Views	Jul 21, 2018 by potomatos
Biopower produces the largest amount of renewable electricity in the United States. Indicate ... Started by abc	1 Replies 24 Views	Jul 21, 2018 by smrerig
Combined cycle biopower, also known as biomass gasification, is the process of converting solid ... Started by Zulu123	1 Replies 29 Views	Jul 21, 2018 by mcomstock09
Pyrolysis converts solid biomass into carbon dioxide and hydrogen (syngas). Indicate whether ... Started by beccaep	1 Replies 34 Views	Jul 21, 2018 by Liamb2179
Co-firing is the process of burning biomass that is mixed with ____. a. petroleum or natural gas ... Started by pepyto	1 Replies 32 Views	Jul 21, 2018 by Anonymous
The majority of biopower electrical plants utilize ____ technology, with an average efficiency of ... Started by lb_gilbert	1 Replies 27 Views	Jul 21, 2018 by kusterl