Which continent has the greatest number of least-developed countries? A. Asia
B. Africa
C. Europe
D. South America
Please select the best answer from the choices provided
Ο Α
B
D

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

What are the similarities and differences in the way geologists and biologists approximate the age of the earth? justify your response in two or more complete sentences.

Which age groups shows the graestest diferrence between males and females