Physics, 20.11.2020 17:00 lovemykay2355
Study the timeline.
A timeline. 4.5 billion years ago, Earth is formed. 4.3 billion years ago, Earliest water. 4.1 billion years ago, Single celled life. 3.5 billion years ago, Earliest oxygen and photosynthesis. 2.5 billion years ago, Complex single celled life. 1.5 billion years ago, Multi cellular life. 500 million years ago, Land life. 300 million years ago, Dinosaurs. 200 million years ago, Mammals. 130 million years ago, Flowers. 5 million years ago, Humans.
Based on fossil evidence, about how long ago did the first single-celled life form appear on Earth?
Answers: 2
Physics, 22.06.2019 00:30
Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine
Answers: 1
Physics, 22.06.2019 12:00
Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.
Answers: 1
Physics, 22.06.2019 12:20
The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.
Answers: 2
Physics, 22.06.2019 16:00
In which of the following is positive work done by a person on a suitcase
Answers: 1
Study the timeline.
A timeline. 4.5 billion years ago, Earth is formed. 4.3 billion years ago, Earl...
Social Studies, 12.03.2020 00:26
English, 12.03.2020 00:26
Social Studies, 12.03.2020 00:26