Respuesta :
the transition zone is part of the Earth's mantle, and is located between the lower mantle and upper mantle. The collision in Sahel in Africa is a transition zone occurring hope this helped :-)
The environment of the African Transition Zone is known as the Sahel, a semi-arid region of grasslands created by the collision of the Sahara Desert and central African rain forests. The African Transition Zone stretches over a million square miles, and is over 3500 miles in length.
