We see rainbows when the son is behind us and some type of water or rain is in front of us. When the sun light hits a raindrop it's refracted and is changed in direction.
(and we see them with our eyes mannnn or womannnn)
I’m not sure about your experiment can you explain?
They are used to define periods Geological time.
Answer:
dna, fossils (fossil layers), similarities in embryos, and similarities in different organisms that are currently existing.
:) have a nice day love ❤
Explanation: