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H1 https://www.ers.usda.gov/topics/farm-practices-management/irrigation-water-use.aspx

H2 http://www.fao.org/docrep/005/y4252e/y4252e06.htm

H3 https://www.factretriever.com/farming-facts

H4 http://thebananapolice.com/fun-facts/

H5 http://oregonstate.edu/instruct/css/330/two/index2.htm

H6 http://homeguides.sfgate.com/soil-helps-flowers-grow-62051.html

H7 http://www.fullbloomhydroponics.net/hydroponic-systems-101/

H8 http://home.howstuffworks.com/lawn-garden/professional-landscaping/alternative-methods/aeroponics2.htm

H9 http://www.fao.org/docrep/005/y4252e/y4252e06.htm

H10 https://www.vox.com/energy-and-environment/2017/11/8/16611710/vertical-farms

H11 https://www.vox.com/energy-and-environment/2017/11/8/16611710/vertical-farms

H12 http://www.sustainabletable.org/263/pesticides

H13 http://www.cnn.com/2016/09/05/world/aerofarms-indoor-farming/index.html

H14 https://extension.psu.edu/water-system-planning-estimating-water-needs

H15 http://www.foodaidfoundation.org/world-hunger-statistics.html

H16 how many percent is the population growing each year

H17 https://water.usgs.gov/edu/earthhowmuch.html

H18 https://water.usgs.gov/edu/wuir.html

H19 https://www.inabottle.it/en/environment/aeroponics-use-90-less-water

H20 https://news.stanford.edu/news/2010/september/farmland-cutting-forests-090210.html

H21 https://www.vox.com/energy-and-environment/2017/11/8/16611710/vertical-farms

H22 http://www.sustainabletable.org/263/pesticides

H23 http://www.ccohs.ca/oshanswers/chemicals/pesticides/health_effects.html

 

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HI1 http://www.enseco.mx/

HI2 http://flowerslab.net/if-i-was-a-flower-growing

HI3 http://www.freedirtapparel.com/images/pile2.png

HI4 http://www.iconsdb.com/icons/preview/black/book-xxl.png

HI5 https://cdn.pixabay.com/photo/2014/04/03/11/53/lightbulb-312459_960_720.png

HI6 https://hhp-law.com/wp-content/uploads/HammerIcon-300x297.png

HI7 https://upload.wikimedia.org/wikipedia/commons/thumb/8/81/Simpleicons_Business_rising-bar-graph-with-arrow-up.svg/2000px-Simpleicons_Business_rising-bar-graph-with-arrow-up.svg.png

HI8 http://cf.ltkcdn.net/garden/images/std/138562-347x346-strawberryplanting.jpg

HI9 http://hydroponicgardening.com/wp-content/uploads/2015/05/PassiveRaftDWCIllustration640.jpg

HI10 https://futuregrowing.files.wordpress.com/2013/07/apopka-5.jpg

HI11 http://i.ebayimg.com/00/s/MTAwMFgxMDAw/z/ueUAAOSwbYZXX74I/$_1.JPG?set_id=8800005007

HI12 https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwi66sjuuJjUAhWnw1QKHZUQC3IQjRwIBw&url=http%3A%2F%2Fwww.pimpyourkitchen.com%2Fsplashback-designs%2Fwaterline.html%3FsubCategoryID%3D0&psig=AFQjCNGINSXeSPkY37UlB3rj1YbdKvTrYA&ust=1496262110760370

HI13 https://www.openlearning.com/courses/introduction-to-farming

HI14 http://www.cnn.com/2016/09/05/world/aerofarms-indoor-farming/index.html

HI15 https://www.rodalewellness.com/health/10-crazy-things-pesticides-are-doing-to-your-body

HI16 https://d1w9csuen3k837.cloudfront.net/Pictures/780xany/9/9/1/114991_pesticides_shutterstock_352388531.jpg

HI17 https://www.ediblemanhattan.com/wp-content/uploads/2015/09/DSC_2348-872x580.jpg

HI18 https://agfundernews.com/does-the-ritz-carltons-new-indoor-farm-mean-that-indoor-ag-is-here-to-stay.html

HI19 https://www.schneider-electric.com/ww/en/Images/02_WaterForce-IC-980x490.jpg

HI20 http://www.responsiblebusiness.com/wp-content/uploads/2017/09/poverty_20130311.jpg

HI21 https://i1.wp.com/blogs.ft.com/photo-diary/files/2014/05/Myanmar.jpg

HI22 http://i.dailymail.co.uk/i/pix/2009/10/16/article-1220911-00029A3E00000258-750_468x286.jpg

HI23 https://www.oxfam.org/sites/www.oxfam.org/files/styles/node-full/public/emergency/ogb_105033_south_sudan_famine_nyaliah_900x395.jpg?itok=ef_Sa-bx

HI24 http://www.trbimg.com/img-579c2074/turbine/ct-commercial-aquaponics-met-20160718

HI 25 https://thhe-ssl-austusmediallc.netdna-ssl.com/wp-content/uploads/2010/10/organic-hydroponic-produce_mini.jpg

HI 26 https://www.planetnatural.com/wp-content/uploads/2016/12/growing-hydroponics.jpg

HI27 http://static2.businessinsider.com/image/58c6ef72c1407733018b4d83/this-giant-warehouse-farm-says-it-can-grow-100-times-more-greens-per-square-foot-than-traditional-farms.jpg

HI28 https://grist.files.wordpress.com/2014/01/california-drought-map.jpg

HI29 http://www.in.gov/drought/images/department-agriculture-home.jpg

HI30 http://i0.kym-cdn.com/photos/images/original/001/031/939/d98.jpg

HI31 http://i.dailymail.co.uk/i/pix/2014/02/28/article-2569919-1BE52E0C00000578-847_964x641.jpg

HI32 https://i.pinimg.com/originals/37/7c/7c/377c7c29b6772a7f3aae5a2bab1bee76.jpg

HI33 http://bcsga.ca/consumer-info/farm-to-table/

HI34 http://www.oilseedcrops.org/wp-content/uploads/2017/12/bitcoin-futures-300x202.jpg

HI35 https://www.pasadenastarnews.com/wp-content/uploads/2018/01/pas-l-roofgarden01-0113-1.jpg?w=864

HI36 http://www.towergarden.com/content/dam/towergarden/blog-post-images/2017/04/bell-book-candle.jpg

HI37 https://seaagri.com/wp-content/uploads/2015/11/Hydroponics-e1452178510456.jpg

HI38 https://fthmb.tqn.com/3h0pkOIwciPFOTUPB5Ullrnixjw=/960x0/filters:no_upscale()/119791286ps-56a5034d3df78cf77285f901.jpg

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T2 http://www.sustainabledomes.com.au/flex/the-history-of-aquaponics-systems/37/1

T3 10 companies feeding the urban farming boom | GreenBiz

T4 https://cals.arizona.edu/hydroponictomatoes/history.htm

T5 https://www.greenandvibrant.com/history-of-hydroponics

T6 http://modularhydro.com/ArticleLibrary/WhatisHydroponicsAHistory.html \

T7 https://home.howstuffworks.com/lawn-garden/professional-landscaping/alternative-methods/aeroponics1.htm

T8 https://www.milkwood.net/2014/01/20/aquaponics-a-brief-history/

 

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TI1 http://aquaponicsthewayofthefuture.weebly.com/history.html

TI2 https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Francis_Bacon%2C_Viscount_St_Alban_from_NPG_%282%29.jpg/220px-Francis_Bacon%2C_Viscount_St_Alban_from_NPG_%282%29.jpg

TI3 https://cdn.mr-fothergills.co.uk/product-images/op/z/26439z.jpg

TI4 http://www.reisenett.no/map_collection/historical/shepherd/Indians_States_Shepherd.jpg

TI5 https://covers.openlibrary.org/b/id/7092450-M.jpg

TI6 http://i.dailymail.co.uk/i/pix/2017/02/04/21/3CB8B85F00000578-4179352-The_jet_age_really_took_off_at_the_end_of_1958_pictured_and_Pan_-a-21_1486244515916.jpg

TI7 https://images-na.ssl-images-amazon.com/images/I/71LC70jruDL._SL1000_.jpg

TI8 http://2.bp.blogspot.com/-2WNdZbkSmHU/TyMLzFaAgMI/AAAAAAAAA-0/rGgZOTxp93g/s1600/rakocy_now.jpg

TI9 https://images.theconversation.com/files/200879/original/file-20180105-26172-1fxdpjm.jpg?ixlib=rb-1.1.0&rect=0%2C219%2C1369%2C683&q=45&auto=format&w=668&h=324&fit=crop

TI10 https://cdn.maximumyield.com/images/uploads/cbb086bbfafc4df3ab2daafa941903ad.jpg?height=580&width=940&mode=crop

TI11 https://www.jsc.nasa.gov/history/img/tiles/Kennedy.jpg

TI12 http://3.bp.blogspot.com/-lOwa1aLhLwg/TyML01eyigI/AAAAAAAAA-8/ZumLVWEphkY/s1600/rakocy_then_lg.jpg

 

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Y1 https://www.npr.org/sections/thesalt/2016/07/15/485722228/where-did-agriculture-begin-oh-boy-its-complicated

Y2 https://www.dahu.bio/en/knowledge/agriculture/traditional-agriculture

Y3 https://greengrotech.com/what-is-aquaponics-and-how-does-it-work/

Y4 http://hydroponicsociety.org/how-does-aeroponics-work/

Y5 http://aeroponicsbpghs.blogspot.com/p/aeroponics-pt-2.html

Y6 http://www.fullbloomhydroponics.net/hydroponic-systems-101/
 

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YI1 https://www.dahu.bio/images/photos/agriculture/laclefdesterroirs-agriculture-08.jpg

YI2 http://www.osius.com/wp-content/uploads/2017/04/oracle-ebusiness-agriculture.jpg

YI3 http://blogs.discovermagazine.com/d-brief/files/2017/11/shutterstock_615658853-1024x683.jpg

YI4 https://www.sciencebuddies.org/Files/8717/4/aquaponics-thumbnail.jpg

YI5 https://www.thebugoutbagguide.com/wp-content/uploads/2015/09/fish-666729cruciancarp.jpg

YI6 http://www.offthegridnews.com/wp-content/uploads/2014/09/aquaponics-2-aquaponicsplan.jpg

YI7 https://pittsburghgreenstory.com/wp-content/uploads/2017/01/dutch-boy-aeroponics.jpg

YI8 http://res.cloudinary.com/culturemap-com/image/upload/f_auto,q_auto,w_auto/c_limit,w_1200/v1494927575/photos/205251_original.jpg

YI9 https://static1.squarespace.com/static/54da17d5e4b04cedc7c2e6b8/t/551ef1e1e4b0e0673a8d2f90/1428091373845/about-aeroponics.jpg

YI10 http://www.farmfutures.com/sites/farmfutures.com/files/styles/article_featured_standard/public/HydroponicVegetable.jpg?itok=s--kai7H

YI11 https://www.carolinafarmstewards.org/wp-content/uploads/2017/10/Modern-Hydroponic-Gardening-Methods.jpg

YI12 http://www.taproduce.com/wp-content/uploads/2016/11/Hydro_PageImage1.jpg

YI13 https://static1.squarespace.com/static/55aa9d12e4b0d9c287c74968/t/575ee43740261df3dd7774b9/1465836610040/

 

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IS1 Agriculture in the United States - Wikipedia

IS2 http://easyponic.com/pros-and-cons-hydroponics/

IS3 http://easyponic.com/pros-and-cons-hydroponics/

IS4 https://blog.brightagrotech.com/indoor-hydroponic-farming-costs-profits

 

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ISI1 https://www.southernfoodways.org/app/uploads/Mike-Lewis-courtesy-of-Farm-Flavors.com-.jpg

ISI2 http://www.panna.org/sites/default/files/styles/blog_lead_image/public/blog/happy-senior-couple-farm_0.jpg?itok=L49uZMJ1

ISI3 https://nvlupin.blob.core.windows.net/images/van/UCS/UCS/1/58097/images/food-agriculture-farm-farmers-soil.jpg

ISI4 https://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Hydroponic_onions_nasa.jpg/300px-Hydroponic_onions_nasa.jpg

ISI5 https://i0.wp.com/www.farmhydroponics.com/wp-content/uploads/2013/08/What-is-hydroponics-farming.jpg?resize=600%2C399

ISI6 https://i1.wp.com/www.hydroponics.name/wp-content/uploads/2015/04/simple-hydroponics.jpg

ISI7 https://www.rimolgreenhouses.com/sites/default/files/images/responsive/rimol-header-hydro-large.jpg

ISI8 http://www.thehydrocultivator.com/wp-content/uploads/2014/05/induction.jpg

ISI9 https://i.pinimg.com/originals/71/5e/47/715e4752076c16949ad089716536e926.jpg

 

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S1 http://www.urbancultivator.net

S2 https://cityos.io/Worlds-Best-Hydroponics-Innovators

S3 https://www.greensensefarms.com

S4 https://montreal.lufa.com/en/the-farms

 

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SI1 http://diyhousehelp.com/wp-content/uploads/2015/10/urban-cultivator-indoor-garden-appliance-1000x600.jpg

SI2  http://www.urbancultivator.net/img/uclogo2.png

SI3 https://static1.squarespace.com/static/57d73d3f5016e169debc7017/t/58c30746e6f2e1378fb47993/1489176480421/

SI4 https://media.licdn.com/mpr/mpr/AAEAAQAAAAAAAAfPAAAAJGY3NWYxY2ZkLWNiNzgtNDU2ZS05OGE3LTBhMGM5NTUyMGMwMA.jpg

SI5 http://reports.thomsonreuters.com/9billionbowls/assets/images/urban-harvests/hero.jpg?rev-f5ab9b6c

SI6 https://d19j0qt0x55bap.cloudfront.net/production/startups/green-sense-farms-llc/images/startup_image/square_GSF-logo1.jpg

SI7 https://upload.wikimedia.org/wikipedia/en/thumb/2/2a/Lufa_Farms_Logo.jpg/220px-Lufa_Farms_Logo.jpg

SI8 https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Lufa_Farms_Aerial_view_of_Montreal_rooftop_greenhouse6.jpg/1200px-Lufa_Farms_Aerial_view_of_Montreal_rooftop_greenhouse6.jpg

SI9 https://upload.wikimedia.org/wikipedia/commons/9/9f/Lufa_Farms_Montreal_rooftop_greenhouse.jpg

SI10 https://static1.squarespace.com/static/54ec7e4fe4b0866fef062b8b/555cca38e4b0c9c7042760c1/57fd464ad482e9b521945f47/1502128106335/Freight+Farms_2016+LGM_Interior+7.jpg?format=750w

SI11 https://static1.squarespace.com/static/54ec7e4fe4b0866fef062b8b/555cca38e4b0c9c7042760c1/57fd464ad482e9b521945f47/1502128106335/Freight+Farms_2016+LGM_Interior+7.jpg?format=750w

SI12 https://www.peppergang.com/wp-content/uploads/2017/07/logo-1.png

SI13https://c1.sfdcstatic.com/content/dam/web/en_us/www/images/nam-manufacturers/FreightFarms_RightThumbnail2.jpg

 

 

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D1 https://www.wikihow.com/Build-a-Homemade-Hydroponics-System

D2 https://dengarden.com/gardening/indoor-hydroponic-garden

D3 https://aquaponics.com/build-a-mini-aquaponic-system/

D4 http://www.aquaponicssystems.net/aquaponics-systems-fish/aquaponics-fish

 

 

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DI1 https://cdn.instructables.com/FAW/6E1V/9TTET2JXY5F/FAW6E1V9TTET2JXY5F.LARGE.jpg

DI2 http://www.just4growers.com/media/2309/plastic_box.jpg

DI3 http://3.bp.blogspot.com/-bmSzm4ZLr5o/Tr22go1VfZI/AAAAAAAAA1c/rJjMPiQ_nKo/s1600/Basement+Hydroponics+5+007.JPG

DI4 https://www.farmtek.com/wcsstore/EngineeringServices/allbizunits/prodimages/large/109299c.jpg

DI5 http://www.mosesong.com/blog_images/large/09_05_14_hydroponic19.jpg

DI6 550px-nowatermark-Build-a-Homemade-Hydroponics-System-Step-13-Version-3.jpg

DI7 http://swisspaleo.ch/wp-content/uploads/2014/09/DSC00191.jpg

DI8 https://maxpull-tlu7l6lqiu.stackpathdns.com/wp-content/uploads/2017/05/oregano-variety-400x267.jpg

DI9 https://images-na.ssl-images-amazon.com/images/I/51T1t9adQEL._SY355_.jpg

DI10 https://img.aws.livestrongcdn.com/ls-article-image-673/ds-photo/getty/article/176/95/478080334.jpg

DI11 https://cdn1.medicalnewstoday.com/content/images/articles/270/270678/celery.jpg

DI12 http://rawsuperfoods.com/wp-content/uploads/2015/07/tomatos.jpg

DI13 https://www.almanac.com/sites/default/files/styles/primary_image_in_article/public/image_nodes/cucumbers.jpg?itok=IOF7qOTa

DI14 http://www.southernexposure.com/images/large/lettuce-romaine-jericho_LRG.jpg

DI15 https://gardengoodsdirect.com/wp-content/uploads/2016/09/best_002e8e8be4463716438e_spider_plant.jpg

DI16 https://goingtoseedinzone5.files.wordpress.com/2011/07/img_80481.jpg

DI17 https://gardengoodsdirect.com/wp-content/uploads/2017/07/White_Butterfly.jpg

DI18 https://dh1muyqdu88ie.cloudfront.net/wp-content/uploads/2017/03/19125939/devils-ivy-plant.jpg

DI19 https://d2kwjcq8j5htsz.cloudfront.net/1970/01/24104230/goldfish2.jpg

DI20 https://media.npr.org/assets/img/2014/06/15/istock-8674833-rainbow-trout-fish_custom-edfcc52e2460e86277f9e72f9ac14cbf6daa2423-s900-c85.jpg

SI21 https://amedia.britannica.com/700x450/22/141422-004-8F3EA56D.jpg

SI22 https://i.ytimg.com/vi/Wsw2X0A2-vo/maxresdefault.jpg