Paragraph 2
The
on Earth is always moving. Three hundred million years
, there was one supercontinent, called Pangea. Over
of years, Pangea broke up. Giant
of land slowly moved across the
to become the continents we know today. Rifts are one
why land masses split apart. The rift in Zambia is part of a 2,500-kilometre-long
. The rift is moving at a rate of about 4.7 mm per year. At this
, it will take millions of years for Africa to split in
. Scientists believe that in 200 million years, there could be just one supercontinent
.
