Please helps .-. which of these events had at LEAST effect on the history of life on earth?

A. Global climate change

B. Mountain building

C. Changes to the genetic code

D. Meteor or asteroid impacts

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?