Answer and Explanation:
About two-thirds of the Earth's surface lies beneath the oceans. The depths of the open ocean were mostly a matter of speculation before the 19th century. Most people thought ocean floor was flat and featureless. In the early 16th century, a few navigators found that the open ocean can differ considerably in depth by taking soundings with hand lines, which shows that the ocean floor was not as flat as it believed.
At the beginning of the 1950s, scientists used magnetic instruments adapted from airborne devices to recognize odd magnetic variations across the ocean developed during World War II to detect submarines. They found that the iron-rich and volcanic rock make up the ocean floor-- contains a strongly magnetic mineral and can distort compass readings. In the early 18th century, this distortion was recognized by Icelandic mariners. Magnetite gives measurable magnetic properties; these magnetic variations help to study the deep ocean floor.
<span>The ruler Sargon of Akkad Semitic-speaking Akkadian Empire, united the geographic areas of northern and southern Mesopotamia. His empire included most of the regions of Mesopotamia. He conquesed Mesopotamia and added it to his reign. </span>
Answer:
because it helps them keep balence
Explanation:
Running away from a bear is not always the best way to escape as bears can chase their pray for long distances. But if you have to run away try running in a zigzag fashion. Take sharp turns to the left and right. As the bear is not good at turning quickly it will give you some advantage, But if your running down a slope a bear will often run zig zag also to keep balance.
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