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12 hours ago · United States 1960 postal stamp advocating water conservation. Water conservation includes all the policies, strategies and activities to sustainably manage the natural resource of fresh water, to protect the hydrosphere, and to meet the current and future human demand (thus avoiding water scarcity). Population, household size and growth and ...
12 hours ago · South Sudan (/ s uː ˈ d ɑː n,-ˈ d æ n /), officially the Republic of South Sudan, is a landlocked country in eastern Central Africa.It is bordered by Ethiopia, Sudan, the Central African Republic, the Democratic Republic of the Congo, Uganda, and Kenya, and includes the vast swamp region of the Sudd, formed by the White Nile and known locally as the Bahr al Jabal, meaning "Mountain Sea".
12 hours ago · The narwhal (Monodon monoceros), is a species of toothed whale, and the only member of the genus Monodon.Its closest living relative is the beluga whale, and cases of interbreeding between the two species has been recorded.
12 hours ago · Minnesota (/ ˌ m ɪ n ə ˈ s oʊ t ə / ⓘ MIN-ə-SOH-tə) is a state in the Upper Midwestern region of the United States.It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents.
- 86,935.83 sq mi (225,163 km²)
- 4 Democrats, 4 Republicans (list)
12 hours ago · The coolest layer of the Sun is a temperature minimum region extending to about 500 km above the photosphere, and has a temperature of about 4,100 K. This part of the Sun is cool enough to allow for the existence of simple molecules such as carbon monoxide and water, which can be detected via their absorption spectra.
12 hours ago · Pennsylvania is the fifth-most populous state in the United States, with over 13 million residents as of the 2020 United States census. The state is the 33rd-largest by area and has the ninth-highest population density among all states.
12 hours ago · The Pourbaix diagram for chromium in pure water, perchloric acid, or sodium hydroxide. Chromium is a member of group 6, of the transition metals. The +3 and +6 states occur most commonly within chromium compounds, followed by +2; charges of +1, +4 and +5 for chromium are rare, but do nevertheless occasionally exist.
