CREDITS John Parrot/Stocktrek Images/Getty Images; (background) Chinnapong/Shutterstock; 240: Reza Estakhrian/The Image Bank Unreleased/Getty Images. Unit 7: 242–243: Stephen Simpson/ Stone/Getty Images; 244: (t) Matt Gibson/Shutterstock; (b) Gregory Sweeney/Moment/Getty Images; 246: (tl) Skellos/123RF; (tm) Angelo Cavalli/ Stone/Getty Images; (tr) BalazsKovacs/ Deposit Photos; (ml) CherylRamalho/ Shutterstock; (mm) Sharply Done/E+/ Getty Images; (mr) Skip Moody/Dembinsky Photo Associates/Alamy; (bl) Kamchatka/ Deposit Photos; (bm) DHDeposit18/ Deposit Photos; (br) LWA/Stone/Getty Images; 247: Darrinahenry/Deposit Photos; 248: (t) Glowimages/Getty Images; (mt) RWI Fine Art Photography/Alamy; (mb) Manoj Shah/Photodisc/Getty Images; (b) John Conrad/Corbis Documentary/ Getty Images; 249: (title design) Adike/ Shutterstock; (text box background) Valentin Agapov/Shutterstock; 250: (l) Arterra/Universal Images Group/Getty Images; (r) Mike Modular/Deposit Photos; 250–251: (background) Oleg Senkov/ Alamy; 251: Dchulov/Deposit Photos; (inset) Andrei Stepanov/Shutterstock; 252–253: (background) Cinoby/E+/Getty Images; 252: (l) Bernadette Heath/Shutterstock; (r) Photonewman/Deposit Photos; 253: (inset, t) Juan Carlos Munoz/Photodisc/ Getty Images; (inset, bl) Sirtravelalot/ Shutterstock; (inset, br) Yhelfman/Deposit Photos; 254–255: (background) Cavan Images/Getty Images; 255: (inset) Paul Tessier/123RF; 256–257: (background) Zhaubasar/Deposit Photos; 257: (inset, t) Nick Brundle Photography/Moment/ Getty Images; (inset, b) Alina Morozova/ Moment/Getty Images; 258: (background) Matteo Colombo/Moment/Getty Images; (frog) Brandon Alms/123RF; (equator) Ibraman3012/Deposit Photos; 259: (background) Giordano Cipriani/The Image Bank/Getty Images; (inset) Dropthepress/ Deposit Photos; 260: (t) Oleg Senkov/ Alamy; (mt) Cinoby/E+/Getty Images; (mb) Cavan Images/Getty Images; (b) Zhaubasar/ Deposit Photos; 261: FloridaStock/ Shutterstock; 262: Duy Phuong Nguyen/ Alamy; 263: (l) Quickshooting/123RF; (m) Mia2you/Shutterstock; (r) James P Mock/ Shutterstock; 264: (t) Cavan Images/Getty Images; (m) Matteo Colombo/Moment/ Getty Images; (b) Oleg Senkov/Alamy; 265: (t) Cinoby/E+/Getty Images; (bl) Stephen Simpson/Stone/Getty Images; (bml) Arterra/ Universal Images Group/Getty Images; (bmm) Mike Modular/Deposit Photos; (bmr) Matteo Colombo/Moment/Getty Images; (br) Cavan Images/Getty Images; 266: Brasil2/E+/Getty Images; (background) Donatas1205/Shutterstock; 267: Harry Collins Photography/Shutterstock; 269: Seanscott/RooM/Getty Images; 271: Moodboard/Brand X Pictures/Getty Images; 272: Seventyfour74/123RF; 273: Roman Striga/Shutterstock; 274: (t) Ed Young/ Design Pics Inc/Alamy; (b) Pgiam/E+/Getty Images; (background) Ed Young/Design Pics Inc/Alamy; 277: DG-Studio/Shutterstock; 278: Mohd Hafizol Hassim/123RF; 279: The Tetons and the Snake River, Grand Teton National Park, Wyoming (1942), Ansel Adams. Gelatin silver print, 15 5/16 x 19 1/16 in. (38.9 x 48.4 cm). Collection Center for Creative Photography, The University of Arizona/© 2020 The Ansel Adams Publishing Rights Trust; 282: Keren Su/China Span/Alamy. Unit 8: 284–285: Ariel Skelley/ DigitalVision/Getty Images; 286: (t) Leonid Ikan/Shutterstock; (b) Jimbo Cymru/ Shutterstock; 287: (t) Focuspocusltd/ Deposit Photos; (m) Brian Summers/ First Light/Design Pics Inc/Alamy; (b) Tomasz Trybus/Alamy; 288: (tl) Oksana Shufrych/Shutterstock; (tm) Odelinde/ Deposit Photos; (tr) AndrewLozovyi/ Deposit Photos; (ml) Fouroaks/Deposit Photos; (mm) Olegdudko/123RF; (mr) Prasit Photo/Moment/Getty Images; (bl) Kali9/E+/Getty Images; (bl, inset) Valentina Razumova/123RF; (bm) Zazastudio/123RF; (br) Gosphotodesign/Deposit Photos; 289: Sleepwalker/Deposit Photos; 291: (text box background) Valentin Agapov/Shutterstock; 292: (l) Dinictis/Deposit Photos; (r) Scusi0-9/ Deposit Photos; 297: West1/Deposit Photos; 301: Antonio Diaz/123RF; 303: (t) Pakova/Deposit Photos; (m) Adriaticfoto/ Shutterstock; (bl) Kira-Yan/iStockphoto/ Getty Images; (br) Stephen Simpson/Stone/ Getty Images; 304: (t) Vova Shevchuk/ Shutterstock; (mt) Exinocactus/Deposit Photos; (mb) Karnizz/Deposit Photos; (b) Tan Yilmaz/Moment/Getty Images; 306: (background) Valentin Agapov/ Shutterstock; (t) GraphicaArtis/Archive Photos/Getty Images; (b) GraphicaArtis/ Archive Photos/Getty Images; 307: (l) Pressmaster/Deposit Photos; (m) Sharply Done/E+/Getty Images; (r) Nick Brundle Photography/Moment/Getty Images; 308: (t) Diaries and Notebooks:, Orville Wright. 1903. Manuscript/Mixed Material. Retrieved from the Library of Congress, www.loc. gov/item/wright002238/; (b) Apic/Hulton Archive/Getty Images; (background) Pooh Photo/Shutterstock; 310: Fotosearch/ Archive Photos/Getty Images; 311: Nicemonkey/Deposit Photos; 312: ICP/ Incamerastock/Alamy; 313: (tl) Scanrail/ Deposit Photos; (tm) Iraidka/Deposit Photos; (tr) Olga Popova/Shutterstock; (bl) Xpixel/Shutterstock; (bm) Ktsdesign/Deposit Photos; (br) Jonathan Kitchen/DigitalVision/ Getty Images; 314: (t) Jiri Hera/ Shutterstock; (m) Chris Tefme/Shutterstock; (b) Herreid/Deposit Photos; 315: VioletaStoimenova/E+/Getty Images; 316: (t) Alexmit/Deposit Photos; (b) JPL Caltech/ NASA; 317: Dmytro Zinkevych/Alamy; 318: (t) Coolpicture/Moment/Getty Images; (m) HayDmitriy/Deposit Photos; (b) SDI Productions/E+/Getty Images; (background) Valentin Agapov/Shutterstock; 319: Chroma Green (2011), Richard Lang and Judith Selby Lang. Archival pigment print on Moab Entrada fine art paper, dimensions variable; 322: Dmitry Kalinovsky/123RF. Dictionary: 326: (absorb) Oleg Senkov/ Alamy; (active) Wavebreak Media Ltd/123RF; (acute angle) Stanislav Khokholkov/Shutterstock; (adapt) Sirtravelalot/Shutterstock; (adaptation) Bernadette Heath/Shutterstock; (admit) Yevhen Prozhyrko/Shutterstock; (affect) 358 CREDITS
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