What is the process by which heat is trapped in the atmosphere?

What is thought to have caused the mass extinction at the end of the cretaceous period?

Plants that have reproductive structures called cones are?

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community