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Most of these plants have true roots and leaves, and many were quite tall. The tree-like Archaeopteris, ancestral to the gymnosperms, and the giant cladoxylopsid trees had true wood. These are the oldest known trees of the world's first forests. Prototaxites was the fruiting body of an enormous fungus that stood more than 8 meters tall. By the ...
Land plants evolved from a group of freshwater green algae, perhaps as early as 850 mya, [3] but algae-like plants might have evolved as early as 1 billion years ago. [2] The closest living relatives of land plants are the charophytes, specifically Charales; if modern Charales are similar to the distant ancestors they share with land plants, this means that the land plants evolved from a ...
The World Bank was created at the 1944 Bretton Woods Conference, along with the International Monetary Fund (IMF). The president of the World Bank is traditionally an American. [12] The World Bank and the IMF are both based in Washington, D.C., and work closely with each other.
Wangarĩ Maathai (/ w æ n ˈ ɡ ɑː r i m ɑː ˈ ð aɪ /; 1 April 1940 – 25 September 2011) was a Kenyan social, environmental, and political activist who founded the Green Belt Movement, [2] [3] an environmental non-governmental organization focused on the planting of trees, environmental conservation, and women's rights.
Also in 2016, Quizlet launched "Quizlet Live", a real-time online matching game where teams compete to answer all 12 questions correctly without an incorrect answer along the way. [15] In 2017, Quizlet created a premium offering called "Quizlet Go" (later renamed "Quizlet Plus"), with additional features available for paid subscribers.
According to the U.S. Department of Commerce, 85% of artificial trees are made in China in factories that churn out around 1,500 trees in just two days, accruing labor costs of a measly $600 a ...
According to Britannica, once the trend of having Christmas trees really took off around the world, there was some concern in various areas over the decreasing supply of trees. To help combat the ...
The Greek botanist Theophrastus (c. 371 – c. 287 BC) first mentioned that the wood of trees has rings. [7] [8] In his Trattato della Pittura (Treatise on Painting), Leonardo da Vinci (1452–1519) was the first person to mention that trees form rings annually and that their thickness is determined by the conditions under which they grew. [9]