Geography

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Carbon is fixed in the biosphere through ________ into carbohydrate compounds. A) bacteria B) ... Started by HCHenry	1 Replies 85 Views	Jul 13, 2018 by Pamela.irrgang@yahoo.com
The following does not have a sedimentary cycle. A) Zinc B) Copper C) Phosphorus D) Sulfur E) ... Started by londonang	1 Replies 120 Views	Jul 13, 2018 by CAPTAINAMERICA
In terms of biogeochemical cycles, calcium has a(n) ________. A) mysterious cycle B) ... Started by Lisaclaire	1 Replies 200 Views	Jul 13, 2018 by stillxalice
Which components are necessary for photosynthesis to occur? A) Carbon dioxide and light B) ... Started by bobypop	1 Replies 89 Views	Jul 13, 2018 by Rilsmarie951
The conversion of nitrates into free nitrogen ________. A) does not happen in nature B) is ... Started by Bob-Dole	1 Replies 63 Views	Jul 13, 2018 by dyrone
Photosynthesis is a main means of fixing ________ in the ecosystem. A) benthos B) oxygen C) ... Started by melly21297	1 Replies 115 Views	Jul 13, 2018 by ky860224
On land, net primary productivity is greatest ________. A) where nutrients are greatest B) in ... Started by notis	1 Replies 89 Views	Jul 13, 2018 by aliotak
________ is the term for the physical amount of plant material at a location. A) Biomass B) ... Started by saliriagwu	3 Replies 107 Views	Jul 13, 2018 by yifu223
Of the total solar energy reaching the Earth, ________ percent is fixed by photosynthesis. A) 80 ... Started by Bernana	1 Replies 120 Views	Jul 13, 2018 by ttt030911
Which of the following is made by chemical processing of animal fat or vegetable oil? A) Gasoline ... Started by karateprodigy	1 Replies 78 Views	Jul 13, 2018 by Beatricemm
Of the main nutrients in the biosphere, the one that is fixed inside nodules in certain plant roots ... Started by KWilfred	1 Replies 88 Views	Jul 13, 2018 by kaillie
In the concept of the food chain, the fundamental unit consists of ________. A) bacteria B) ... Started by Chloeellawright	1 Replies 129 Views	Jul 13, 2018 by Kimmy
Animals which eat plants are also known as ________. A) predators B) carnivores C) secondary ... Started by jasdeep_brar	1 Replies 97 Views	Jul 13, 2018 by flexer1n1
In food chains, ________ eat plants. A) herbivores B) the most plentiful animals in the food ... Started by geoffrey	1 Replies 146 Views	Jul 13, 2018 by nickk12214
According to the food chain concept, it takes ________ kilograms of plankton to make one kilogram of ... Started by tsand2	1 Replies 208 Views	Jul 13, 2018 by ntsoane kedibone
Started by jhjkgdfhk	3 Replies 89 Views	Jul 13, 2018 by canderson530
What was learned about the environment from the Deepwater Horizon event? A) Never drill in the ... Started by Coya19@aol.com	1 Replies 81 Views	Jul 13, 2018 by mbcrismon
Major natural extinctions are thought to have happened ________ in Earth history. A) never B) ... Started by TFauchery	1 Replies 169 Views	Jul 13, 2018 by hanadaa
Stable associations of plant communities are called ________. A) climax vegetation B) seral ... Started by K@	1 Replies 101 Views	Jul 13, 2018 by bhavsar
Evolutionary development comes as a result of ________. A) geographic location B) extinction C) ... Started by go.lag	1 Replies 62 Views	Jul 13, 2018 by abro1885
Started by ss2343	1 Replies 68 Views	Jul 13, 2018 by KKcool
Of the climatic factors, ________ is usually the most limited in its impact on biotic distributions. ... Started by shofmannx20	1 Replies 155 Views	Jul 13, 2018 by jojobee318
Wildfire can be said to ________. A) be a small effect worldwide B) be mainly limited to desert ... Started by bucstennis@aim.com	1 Replies 74 Views	Jul 13, 2018 by mcabuhat
The effect of winds on life is ________. A) almost always negative B) almost always positive C) ... Started by big1devin	3 Replies 98 Views	Jul 13, 2018 by jessofishing
Seasonal behavior in plants and animals is stimulated by ________. A) photoperiodism B) ... Started by audragclark	1 Replies 58 Views	Jul 13, 2018 by Smiles0805