Playa lakes are round hollows in the ground in the Southern High Plains of the United States. They are ephemeral, meaning that they are only present at certain times of the year. The temporal nature of playa lakes led to confusion on the part of early European explorers, some of whom described the region as a desert and others a land of millions of small lakes.
Answer: C
Explanation:
Berbers as they inhabited (and still inhabit) the Sahara trade route which brought goods from West Africa to North African states like Morocco or the Mamluk Sultanate (Egypt)
Over the years of history, there have been several technological inventions that have improved the value of Human life. Some of these inventions dating as far back as 450CE are still in Use to this day.
Below you can read more about Technological inventions between 450CE and 1600CE that are still impactful to this day.
<h3>Technological inventions between 450CE and 1600CE</h3>
PAPER MONEY
Paper money is one of the most important inventions that is still useful to this that. The earliest known use of Paper money was during the Tang Dynasty.
This invention came handy at a time carrying large sums of money was difficult and there was shortage of supply of metal.
Also people needed a central value to carry out Trade.
WINDMILLS
Windmill is yet another invention withing the time frame that is still relevant to this day.
Windmill involves the use of wind to create energy. The first windmills were used to mill grain. The Persians were known to be the first to invent a functional windmill in the 9th Century and this had 'sails' that rotated horizontally instead of vertically as we typically see today.
Learn more about technological inventions at brainly.com/question/24839581
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Answer:Since the 1930s the Middle East has emerged as the world's most important source of energy and the key to the stability of the global economy. This tumultuous region produces today 37% of the world's oil and 18% of its gas. ... It is home to 65% of proven global oil reserves and 45% of natural gas reserves.
