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lidiya [134]
3 years ago
11

What type of evidence do scientists use for plate tectonics

Geography
2 answers:
Mumz [18]3 years ago
8 0
<span>As they spread apart, magma comes to the surface and becomes new continental crust. As the tectonic plates move away from spreading zones, they collide with one another. </span>
frosja888 [35]3 years ago
4 0
<h3>ANSWER:</h3>

There are a number of evidences by which scientists support the plate tectonic theory. One of the evidence is the fossils of animals and plants. The species found in the Antarctic are alike the fossils of western Africa and eastern South America. The paleomagnetic evidence is one of the strongest evidence. The magnetic strata found within the fossil record clearly proves that these pieces of land masses in history were a single unit.

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I’m not sure but I do think it was in between the Tigris and Euphrates rivers
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3 years ago
First englishman to circumnavigate the globe
sergiy2304 [10]

Answer:

Sir Francis Drake was the first englishman to circumnavigate the globe.

Explanation:

However, he was not the first European. Ferdinand Magellan is often credited with this but he died during the voyage and Sebastian Elcano took over the expedition. They sailed about 50 years earlier than Sir Francis Drake.

6 0
3 years ago
What is the elevation of Y and Z?
ehidna [41]

Answer:

Option (3)

Explanation:

In a topographic map, the elevations are represented in the form of contour lines. This is the line of equal elevations. The more contrasting and highlighting contours are considered as index contours.

In the given map, the dark brown colored contours are the index contours, of which Y is the one. The elevation of this contour line is 3250.

The Z contour is at the left bottom portion of the topographic map and shows a lesser contour line of 2900. This can be identified by observing the river flowing downward. The rivers are usually denoted by the blue color line that flows through the V-shaped sequential arrangement of contours. This is one of the ways of determining the increasing and the decreasing direction of contour lines.

Thus, the elevation of Y and Z is 3250 and 2900 respectively.

Hence, the correct answer is option (3).

4 0
3 years ago
How did the 1988 bangladesh floods increase the difficulty of people getting food?
Ghella [55]

Answer: Flooding and wet weather are expensive to farming-based land because they cause delays in and reduction of crop harvest. If soil is too wet it can result in poor conditions for the crops to grow; when soil is well drained then the oxygen, things that act as foods and trace elements that the plant needs are available.

Explanation:

3 0
3 years ago
Earth is a closed system. that means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on earth ___. so it is ess
leonid [27]

<u>Answer:</u>

  • The Earth is a "closed system" which means that the amount of rocks,  carbon, metals, nitrogen, water and oxygen on earth remains constant.
  • So it is essential that "biogeochemical cycles renew these materials" as they move through the Earth's subsystems.

<u>Explanation</u>:

  • The Earth's only source of extra-planetary energy is the Solar radiations received by Earth.
  • The biogeochemical cycles on the planet are responsible for processing the same old rocks, metals, carbon, nitrogen, oxygen, water, and other abiotic substances on Earth in order to naturally renew them and make them available for reuse.
  • No naturally occurring element on Earth is newly produced. It is only renewed through biogeochemical processes.
4 0
3 years ago
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