Geography, 19.07.2019 15:40 pandadude123
Ninety percent of life's history in the geological time scale is occupied by the a. hadean eon. b. archean eon. c. proterozoic eon. d. precambrian supereon.
Answers: 2
Geography, 22.06.2019 19:10
One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.
Answers: 3
Geography, 23.06.2019 18:30
Where the main factor that enabled the growth of cities and civilizations was the existence of
Answers: 1
Geography, 23.06.2019 19:00
What is likely to happen in the long term if the earth continues to absorb more energy than it emits? a. the earth will discontinue recycling energy. b. organisms will begin to compensate for the change by incorporating more energy. c. the overall temperature of the earth will increase. d. the nutrient cycles will happen more frequently. select the best answer from the choices provided a b c d
Answers: 1
Ninety percent of life's history in the geological time scale is occupied by the a. hadean eon. b....
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