4) Scientists believe that perching birds originated on the continents of Australia and Antarctica. How would these scientists explain the discovery of ancient perching bird fossils in Africa? A) At one time, the climate in Earth was consistent throughout the planet. B) The fossils may have been moved by man, animals, or Earth's constructive and destructive processes. C) The birds originated in Africa, but migrated with human populations to Australia and Antarctica to Africa. D) During the life of Pangea, Antarctica, Australia and Africa were neighboring

The correct answer is D) During the life of Pangea, Antarctica, Australia and Africa were neighboring.

It is well known that Antarctica, Australia and Africa (South America too) were neighboring when Pangea still existed, and even after the break up of the super continent, the continents were still close enough so that birds can migrate, and it took quite some time for them to be separated at a distance that the birds can not pass. So the perching birds were separated on three continents, and even though they have the same basis, they do have some specific characteristics that developed over time.

The answers is d. because. During the life of Pangea, Antarctica, Australia and Africa were neighboring continents with similar climates.