Which supercontinents were present on Earth at the beginning of
the Cretaceous period?
O A. Pangaea
O B. Laurasia and Gondwana
O C. Rodinia
O D. Laurussia and Gondwana

How does central place theory explain patterns in the size and distribution of cities?

What is the amount of organic matter in all living organisms in a habitat called?

Which of the following is an example of an outdated theory based on the consensus of the scientific community ? a. big bangb. geocentric solar systemc. heliocentric theoryd. plate tectonics answer : geocentric solar system