Answer:
4th one is correct :)
More carbon dioxide gas would be found in Earth's atmosphere
Answer:
C- it helps develop scientific consensus by making sure new ideas are critically evaluated.
Pedigree is identified as a family tree of genetics.
Answer:
Many people and even scientist believed in spontaneous generation because it explained such occurrences as the appearance of maggots on decaying meat. By the 18th century it had become obvious that higher organisms could not be produced by nonliving material.