Earth's second atmosphere (atmosphere III) was a thick atmosphere of primarily water vapor and carbon dioxide.
What effects did this have on Earth?
Helium and hydrogen gases escaped earth's gravity
Ultraviolet light split water vapor into hydrogen and oxygen.
Increased oxygen allowed reptiles to thrive.
Heat energy was retained and water vapor condensed.
Answers: 3
Biology, 21.06.2019 18:00
Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.
Answers: 1
Biology, 21.06.2019 19:10
What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.
Answers: 2
Biology, 22.06.2019 00:40
Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation
Answers: 1
Biology, 22.06.2019 03:50
Why was mendel's work not accepted at the time? o a. his results were false. o b. he did not repeat his experiments. o c. he did not have any data. o d. his results were surprising,
Answers: 2
Earth's second atmosphere (atmosphere III) was a thick atmosphere of primarily water vapor and carbo...
Social Studies, 24.08.2019 18:20
Mathematics, 24.08.2019 18:20
Mathematics, 24.08.2019 18:20
English, 24.08.2019 18:20
English, 24.08.2019 18:20
Mathematics, 24.08.2019 18:20
Mathematics, 24.08.2019 18:20
History, 24.08.2019 18:20
Mathematics, 24.08.2019 18:20
Mathematics, 24.08.2019 18:20
History, 24.08.2019 18:20
Social Studies, 24.08.2019 18:20
Health, 24.08.2019 18:20