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>Observations show that all galaxies tend to move away from earth, and that more distant galaxies move away from earth at faster velocities than do galaxies closer to the earth. these observations imply that</span> galaxies with high speeds as measured from Earth are moving away from Earth and are farther from Earth than galaxies with lower speeds.
I think the correct answer from the choices listed above is option D. Technological methods used to prove that plate tectonics occur include <span>ocean floor mapping and earthquake tracking. Hope this answers the question. Have a nice day.</span>
Answer:
left is negative longitude
down is negative latitude
Explanation:
need thanks or anything
D) The fresh water lake with the largest surface area