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Answer:
The oldest rocks of the oceanic crust are found in deep ocean trenches far away from active mid-ocean ridges.
Explanation:
Beginning in the late 1940s, oceanic expeditions continued to map the Atlantic ocean floor using new equipment and collecting thousands of rock samples. These works made it possible to map a gigantic system of submarine mountain ranges, called meso-ocean ridges. By perfecting the method of dating rocks, scientists have been able to determine the true age of seabed rocks. They found that the closer to the mid-ocean ridge the rocks were much younger than imagined, while rocks close to the continents were increasingly older, thus corroborating the Continental Drift.
<span>Since lines a and b are parallel and that m∠4 = 128°, therefore:
m<7 would be:
m<7 = 180 - m<4 = 180 - 128 = 52 degrees
Therefore, the measure of angle 4 would be 52 degrees.
I hope my answer has come to your help. God bless and have a nice day ahead!
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Central America is bordered by Mexico to the north, Colombia to the southeast, the Caribbean Sea to the east, and the Pacific Ocean to the west and south!!!!!!!!
