Answer:
D. magnetic polarity reversals
Explanation:
The marine magnetic anomalies are the result of two things; the seafloor spreading at the mid-ocean ridges and the magnetic polarity reversals.
The mid-ocean ridges are the places where the new crust forms. This places also have big influence on the magnetic anomalies, with the reason being that the magnetism has higher influence in this parts.
Also, the magnetic polarity reversals play a big role. The Earth has not always had the same magnetic polarity, and multiple times throughout its past the North and South Poles have been switching places when it comes to the magnetism.
The igneous rocks on the ocean floor have proof in them about this, as the metallic components are reacting to the magnetism and face toward the stronger magnetic field.
There are two potential alternative locations for another canal across the isthmus. These are in <u>Mexico</u> and <u>Nicaragua</u>?
An isthmus is a slim strip of land that connects two larger landmasses and separates two bodies of water. This form of the isthmus is called a tombolo and is shaped as waves and tides slowly building up a sand bar to create an everlasting hyperlink between a coastal island (known as a tied island) and the mainland.
Definitely, the 2 most famous isthmuses are the Isthmus of Panama, connecting North and South America, and the Isthmus of Suez, connecting Africa and Asia.
An isthmus is a slim piece of land connecting two large regions across an expanse of water by which they may be otherwise separated. A tombolo is an isthmus that consists of a spit or bar, and a strait is the ocean counterpart of an isthmus.
Learn more about the isthmus here brainly.com/question/18132243
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A net population decline resulting from an "excess of deaths over births".
Option: A
<u>Explanation</u>:
Demographic transition is a shift from higher to lower level of fertility and mortality.Rapid development in industrialization and urbanization in 
century resulted into enormous population growth. But decline in early 
century covered many reasons like consequences of two calamitous wars, where Europe suffered large population declination due to battle death and civilian causalities in World War I and II. Hence the acceleration of population growth in 19th century but downfall in 20th is also considered as balance.
No bith omg you're dumb, nevermind.
Answer:
(Mission):a group of persons sent by a church to carry on religious work, especially evangelization in foreign lands, and often to establish schools, hospitals, etc. an establishment of missionaries in a foreign land; a missionary church or station.
Secede: withdraw formally from membership of a federal union, an alliance, or a political or religious organization
Reservation: An Indian reservation is a legal designation for an area of land managed by a federally recognized Indian tribe under the U.S. Bureau of Indian Affairs rather than the state governments of the United States in which they are physically located.
Explanation:
