The persian gulf because nearly 50% of the worlds oil reserves are found there
Answer:
Slave trade was abolished in Britain quite early on but there were other countries that carried on in the slave trade. Between the 15th and the 18th century, millions of slaves were transported to north and south America. Over 1.5 million of these died on the journey.
Decomposers break down dead material
Overcrowding and slums developed in many impoverished countries in the 20th century, mostly due to large migrations to cities from people looking for work.