Geography, 04.07.2019 19:30, anthonybowie99
In astronomy, light units are a convenient way to measure distances. light travels at a speed of approximately 3 ã 10 8 m/s which means that one light second is approximately 3 ã 10 8 m. below we list seven distances in light-units and nine physical sizes. match each distance to one size. light nanosecond light millenium light second light century light hour light minute light year across a medium-sized country across a child's limb between the earth and the moon between planets in the outer solar system across the known universe between planets in the inner solar system reach of human-made radio signals out into the universe across a small galaxy between stars in the center of our galaxy
Answers: 2
Geography, 22.06.2019 14:40, thezbell
Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite
Answers: 2
Geography, 22.06.2019 21:00, amcd2002
Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation
Answers: 1
Geography, 23.06.2019 00:00, Jxsolvez
Yo! a girl out ! i will give brainliest! hu one of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.
Answers: 2
Geography, 23.06.2019 03:30, rosiegirl313
Concealer circle oh in which arc xy measures 16 pi centimeters the length of the radius of the circle is 32 cm what is the circumference of the circle
Answers: 1
In astronomy, light units are a convenient way to measure distances. light travels at a speed of app...
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English, 28.06.2019 05:20
English, 28.06.2019 05:20
History, 28.06.2019 05:20
English, 28.06.2019 05:20