What happens when light from the sun interacts with the molecules of the atmosphere?

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

Which is an example of a reversible physical change?