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The Great Depression (1929–1939) was a severe global economic downturn that affected many countries across the world. It became evident after a sharp decline in stock prices in the United States, leading to a period of economic depression. [1] The economic contagion began around September 1929 and led to the Wall Street stock market crash of ...
Social media. Social media are interactive technologies that facilitate the creation, sharing and aggregation of content, ideas, interests, and other forms of expression through virtual communities and networks. [1] [2] Common features include: [2] Online platforms that enable users to create and share content and participate in social networking.
In 2022, about 20% of the Amazon rainforest has already been deforested and a further 6% was "highly degraded". Research suggests that upon reaching about 20–25% (hence 0–5% more), the tipping point to flip it into a non-forest ecosystem – degraded savannah – (in eastern, southern and central Amazonia) will be reached.
Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas.
ByteDance Ltd. is a Chinese internet technology company headquartered in Haidian, Beijing and incorporated in the Cayman Islands. Founded by Zhang Yiming, Liang Rubo and a team of others in 2012, ByteDance developed the video-sharing apps TikTok and Douyin.
McDonald's Corporation is an American multinational fast food chain, founded in 1940 as a restaurant operated by Richard and Maurice McDonald, in San Bernardino, California, United States. They rechristened their business as a hamburger stand, and later turned the company into a franchise, with the Golden Arches logo being introduced in 1953 at ...
The Amazon represents 20% of the global riverine discharge into oceans. The Amazon basin is the largest drainage basin in the world, with an area of approximately 7,000,000 km 2 (2,700,000 sq mi). The portion of the river's drainage basin in Brazil alone is larger than any other river's basin.
Like all European Union state members, France agreed to cut carbon emissions by at least 20% of 1990 levels by 2020, compared to the United States' plan to reduce emissions by 4% of 1990 levels. As of 2009 [update] , French carbon dioxide emissions per capita were lower than that of China. [97]