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Leaves are approximately 6.5–15 centimetres (2 + 1 ⁄ 2 –6 inches) and of oval or elliptical shape that are either opposite or alternate across species, although most leaves are whole and simple with entire margins. [5] Amaranth has a primary root with deeper spreading secondary fibrous root structures. [13]
In 2010, a measurement of the radial velocity of halo stars found that the mass enclosed within 80 kiloparsecs is 7 × 10 11 M ☉. [138] In a 2014 study, the mass of the entire Milky Way is estimated to be 8.5 × 10 11 M ☉, [139] but this is only half the mass of the Andromeda Galaxy. [139] A recent 2019 mass estimate for the Milky Way is 1. ...
Amazon.com offers the option to add an item to a user's cart or purchase it immediately with 1-Click. The company has been criticized for its alleged use of patents as a competitive hindrance; its "1-Click patent" [2] may be the best-known example.
[9] [10] Under ideal laboratory conditions, people can see infrared up to at least 1,050 nm; [11] children and young adults may perceive ultraviolet wavelengths down to about 310–313 nm. [12] [13] [14] Plant growth is also affected by the colour spectrum of light, a process known as photomorphogenesis.
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The Sun is the star at the center of the Solar System.It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungent smell.
[10] Aspirin is also used long-term to help prevent further heart attacks, ischaemic strokes, and blood clots in people at high risk. [10] For pain or fever, effects typically begin within 30 minutes. [10] Aspirin works similarly to other NSAIDs but also suppresses the normal functioning of platelets. [10] One common adverse effect is an upset ...