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The Industrial Revolution, sometimes divided into the First Industrial Revolution and Second Industrial Revolution, was a period of global transition of the human economy towards more widespread, efficient and stable manufacturing processes that succeeded the Agricultural Revolution. Beginning in Great Britain, the Industrial Revolution spread ...
Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their activities.
e. The scientific method is an empirical method for acquiring knowledge that has characterized the development of science since at least the 17th century. The scientific method involves careful observation coupled with rigorous scepticism, because cognitive assumptions can distort the interpretation of the observation.
Portal. v. t. e. The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States between the Union [e] ("the North") and the Confederacy ("the South"), which had been formed by states that had seceded from the Union. The central conflict leading to the war was the dispute over whether ...
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Highest-grossing films Three of the four highest-grossing films, including Avatar at the top, were written and directed by James Cameron.. With a worldwide box-office gross of over $2.9 billion, Avatar is proclaimed to be the "highest-grossing" film, but such claims usually refer to theatrical revenues only and do not take into account home video and television income, which can form a ...
Juneteenth is a federal holiday in the United States. For decades, activists and congress members (led by many African Americans) proposed legislation, advocated for, and built support for state and national observances. During his campaign for president in June 2020, Joe Biden publicly celebrated the holiday. [122]
Saudi Arabia, [e] officially the Kingdom of Saudi Arabia ( KSA ), [f] is a country in West Asia and the Middle East. It covers the bulk of the Arabian Peninsula and has a land area of about 2 150 000 km 2 ( 830 000 sq mi), making it the fifth-largest country in Asia and the largest in the Middle East.