An e-reader, also called an e-book reader or e-book device, is a mobile electronic device that is designed primarily for the purpose of reading e-books and digital periodicals. An e-reader is similar in form, but more limited in purpose than a tablet.-book reading is increasing in the US; by 2014 28% of adults had read an e-book, compared to 23% in 2013.
Fields relating to the environment: 1  Aerobiology (pronunciation) â The study of airborne organic particles.  Astrobiology (pronunciation) â The branch of biology concerned with the effects of outer space on living organisms and with the search for extraterrestrial life.
Within that vast space, the oceans are filled with a huge range of microscopic organisms, animals, and plant life. If you major in marine biology, youâll learn how this life thrives in the oceans. Youâll study such subjects as the chemical makeup of water, the oceanâs geology, marine mammals, fish, plants, and biological habitats. Marine biology majors study the creatures that live in the oceans.