How do you think scientists are able to know what Earth was like millions and billions of years ago? What clues or pieces of evidence do you think

Which best describes how johannes kepler developed his laws of planetary motion

What will most likely happen when two bromine atoms bond together?

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.