It is called emigration. This is a very important word when it comes to animals and science. <span />
I found this photo, i hope it helps
Fog or haze combined with smoke and other atmospheric pollutants./////The SMOG driving model is easy to incorporate into your road habits to make you a safer, more conscious driver when you change lanes. SMOG is an acronym for "Signal, Mirror, Over the Shoulder and Go"--which are the steps you'll follow to put the model into practice.
Answer:
D) found in a limited time span
Explanation:
Index fossils are the remains of living organisms for which we have already established relative age. These are fossils that only existed during a limited period of geologic time and are easily identified, found in large volumes, and found in many different locations around Earth. Due to these factors, index fossils may be used as a guide for comparison in determining the relative age of an unknown object.
have a nice day and mark me brainliest! :)
Cancer, disease, birth defects.
