Mesopotamia (from the Greek, meaning 'between two rivers') was an ancient region located in the eastern Mediterranean bounded in the northeast by the Zagros Mountains and in the southeast by the Arabian Plateau, corresponding to today's Iraq, mostly, but also parts of modern-day Iran, Syria and Turkey.
Science helps improve the environment through advances in research that can help prove or disprove popular theories. Science has helped humans predict natural disasters, global warming, and advance methods for cleaner types of energy. Science is an indispensable tool for understanding our environment, and eventually helping to improve the environment for us all.
Answer:D.unending equal payments paid at equal time intervals
Explanation:
What is a perpetuity?
A perpetuity is a instance in which money is paid continuously for every equal time interval and this is payment is infinite.in
This cash flow occurs now up to forever
Although this is only theorical that the cash flow payment can go on forever but there are related examples which can be explained as perpetuity such as real estate and certain types of bonds.
In the UK for example there is government bond which is called Consol. Under Consol people with bonds get annual fixed coupons as long as they still have hold unto those bonds and if the government doesn't stop the Consol.
The real estate is also an example in which a person but property for the purpose of renting it out , people will keep paying the owner as long as the property is still there to rent out.