Based on your understanding of the birth rate, death rate, and life expectancy in Niger and Italy, which of the above sets of graphs is labeled correctly? A.
One (1)
B.
Two (2)
C.
Three (3)
D.
Four (4)

Which of the following statements about the migration of workers to other countries is false?

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite