The correct answer is - A) Permafrost used to be permanent.
The permafrost used to be permanent until recently, so using certain techniques of building on it functioned properly. But with the climate changes that are becoming more and more evident, the permafrost is no longer permanent, but instead, it is either defrosting in some part of year and then forming again, or has been totally absent from some regions in the present.
That has caused changes in the rules governing building on permafrost. The reason for the changes is that the old techniques do not work properly anymore, and the permafrost changes are making change in the landscape, making big damages on the infrastructure in meantime.
Answer:
During the colonial period, colonial powers had a significant effect on Southeast Asia. The physiography of Southeast Asia has been formed to a large extent by the convergence of three of the Earth's major crustal units: the Eurasian, Indian-Australian, and Pacific plates.
Explanation:
- Besides the Europeans, Japanese and the Americans used to colonize Southeast Asian countries as well. Southeast Asians were under the European powers because Asian empires and kingdom declined while the Europeans became stronger.
Answer:
Rain and wind will cause granite to break down and form soil over time.
Explanation:
Granite is an igneous rock, and it is one of the hardest rocks for that matter. Being an igneous and very hard rock, granite is not easy to break down and it takes a very long time, tens of millions of years in fact, and that is only if it is on the surface and exposed to the outside elements. Basically, this rock needs a very long period of time to get transformed into soil, but like any other rock it is not unbreakable and eventually, it starts to break up.
Two things that will have a big influence on the breaking up of granite would be rain and wind. The rain will cause chemical weathering while the wind will cause mechanical weathering. They will manage to gradually break up very small, fine, pieces of granite, and if they are supported by suitable climatic conditions and a lot of vegetation the process will speed up. Once the granite is broken apart and what is left of it is fine sediments, by mixing with the biomass it will form a soil.
Answer:
the annexation of Hawaii in 1898, which allowed the United states to gain possession and control of all ports, buildings, harbors, military equipment and public property
The guidance of the north start and direction of the sun.
