Answer:
Explanation:
Biomes are typically not classified by temperature, because some biomes can experience extreme temperatures from one season to the next. Other biomes might have a more consistent temperature throughout the year.
The appearance of fossils would the the answer.
Although there has been some scientific debate about what fossil strata should mark the beginning of this period, the "International Geological Congress" determined that the Cambrian period was approximately 543 million years ago of which the first appearance in the fossil record of worms that made horizontal burrows was discovered.
Neptune takes the longest to orbit the sun because its distance from the sun is really far away.
hope i helped :)
Answer:
Hmm I'm not sure I joined only a few days ago.
Explanation:
