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Khalid N. Mumin is an American educator who is the current Secretary of Education of Pennsylvania, serving since 2023. [1] [2] Biography.
The earliest evidence for life on Earth includes: 3.8 billion-year-old biogenic hematite in a banded iron formation of the Nuvvuagittuq Greenstone Belt in Canada; [30] graphite in 3.7 billion-year-old metasedimentary rocks in western Greenland; [31] and microbial mat fossils in 3.48 billion-year-old sandstone in Western Australia.
The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
Mumin was confirmed in June 2023 about six months after Shapiro took office and has presided over some of the administration’s early successes such as increasing funding for K-12 public schools ...
The Origin and Nature of Life on Earth: The Emergence of the Fourth Geosphere (2016) is a book by Eric Smith and biophysicist Harold J. Morowitz which provides an introduction to origins of life research via a review of perspectives from a variety of fields active in this research area, including geochemistry, biochemistry, ecology, and microbiology.
Name Dates served Appointed by David Kurtzman: 1969–1971 Raymond P. Shafer: John Pittenger: 1972–1976 Milton Shapp: Robert N. Hendershot 1977 Caryl M. Kline 1977–1979 Robert G. Scanlon 1979–1983 Dick Thornburgh: Robert C. Wilburn 1983–1984 Margaret A. Smith 1984–1986 D. Kay Wright (Acting) 1986–1987 William Logan (Acting) 1987 Bob ...
Life on Our Planet is an American television nature documentary series released on Netflix and produced by Amblin Television and Silverback Films. Executive-produced by Steven Spielberg and narrated by Morgan Freeman, the series focuses on the evolutionary history of complex life on Earth. Upon its release, the series received generally mixed ...
That Mumin had taken over as the latest global head of ISIS was not widely known, say two U.S. officials. He succeeded Abu al-Hasan al-Hashimi al-Qurashi, who was killed in combat in Syria in late ...