Answer:
verdade
Explicação:
A afirmação é verdadeira de que o estudo dos fundos marinhos trouxe evidências de que as cordilheiras oceânicas são regiões onde a nova crosta oceânica é formada. Essa nova crosta oceânica é formada nas cordilheiras do meio do oceano devido à erupção vulcânica no fundo do mar no processo de propagação do fundo do mar. Nas cordilheiras do meio do oceano, um novo fundo do mar é formado continuamente durante o processo de propagação do fundo do mar.
Answer:
This passage is mainly about asteroids striking Earth.
Explanation:
The presented passage is mostly focusing on asteroids striking Earth. It is something that has been happening since Earth has formed, and it will happen in the future as well. The vast majority of the asteroids don't really have any impact on Earth, but some have an impact that is devastating and long-lasting.
In the earlier stages of Earth, many more asteroids were falling on the surface, and the main reason for that has been the lack of atmosphere or a very thin atmosphere. As the atmosphere started to take shape and became similar to what is nowadays, the asteroid impacts decreased significantly because the atmosphere was managing to burn them and break them apart. This is not possible with all asteroids though, as some are so big and fall under an angle where the atmosphere doesn't really have any impact on them so when they fall on the surface they are able to cause sudden climatic changes, mass devastation, and mass extinction of species. Such an asteroid will be in a direction to hit Earth in the future for sure, the question remains will humans with their technology be able to prevent an impact or not.
Answer:
A
Explanation:
Subsequent boundaries are boundaries that were there before a place was established.
Example: Berlin and the wall of Berlin.
Hope this helps :)
Answer:
B. The science of determining the order of events in relation to each other, without a specific date.
Explanation:
you can look it up on the Wikipedia and you see something similar to B.
