On early Earth, more than 4 billion years ago, environmental conditions were very different from those today because On early Earth, more than 4 billion years ago, environmental conditions were very different from those today because early Earth's atmosphere had significant quantities of ozone. only early Earth was intensely bombarded by large rocks and ice from space. only early Earth had an oxidizing atmosphere. less ultraviolet radiation penetrated early Earth's atmosphere.
Answers: 2
Geography, 22.06.2019 12:30
What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors
Answers: 1
Geography, 22.06.2019 13:00
The increase of pollutants from in mexico has raised concerns about garage to health and the environment
Answers: 3
Geography, 23.06.2019 21:40
Irelanda. populationb. square mileagec. average population density per square mile
Answers: 1
On early Earth, more than 4 billion years ago, environmental conditions were very different from tho...
Computers and Technology, 08.01.2020 00:31
Mathematics, 08.01.2020 00:31
Computers and Technology, 08.01.2020 00:31
Mathematics, 08.01.2020 00:31
Mathematics, 08.01.2020 00:31
Mathematics, 08.01.2020 00:31
Mathematics, 08.01.2020 00:31
Biology, 08.01.2020 00:31