百度试题 结果1 题目How many major sections is the earth’s crust divided into A.Two.B.Seventy.C.Seven.D.Twelv 相关知识点: 试题来源: 解析 C 从“The earth’s crust is divided into seven sections”,可以推断出答案。反馈 收藏
In order to understand continental evolution and other geological processes, it is first necessary to develop a thorough knowledge of the Earth's crustal structure. We present a recently-updated contour map of the thickness of the Earth's crust using a 10-km contour interval, with the 45-km ...
The Earth's Crust:The crust of the Earth is a thin layer around the hot mantle of the planet and is the only part of the planet we've ever directly observed. The crust varies in thickness from about 5-10 km thick for the oceanic crust to 30-50 km thick for the continental crust....
An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves . Earthquakes are recorded with a seismometer , also known as a seismograph . The moment magnitude of an earthquake is conventionally reported, or the related and mostly obsolete Richter m...
Recently, our scientists have begun digging a really (66) deep hole down to the center of the Earth in Xinjiang, hoping to learn what is happening inside the planet. It is said that the hole will be 10 km (67) deep when completed. That means the drill wi
The world’s most powerful earthquakes happen in subduction zones, where one tectonic plate slides beneath the other. When these plates become stuck together, stress builds in the crust of the Earth — like a rubber band being stretched. When enough stress builds up to overcome the friction hol...
Titanium is the fourth most-abundant metal, making up about 0.62% of the earth’s crust. However, titanium is rarely found in its pure form. Titanium typically exists in minerals, such as anatase, brookite, ilmenite, leucoxene, perovskite, rutile and sphene. Although it is abundant in quanti...
While this is the likeliest explanation for the early development of habitability on Earth, what was it like for the other planets of the solar system, such as our neighbor, the red planet? As we continue to explore Mars, it is becoming ever clearer thatsimilar environmental conditionswere de...
Volcanoes are nature's way of bringing material from deep within the earth up to the surface. Melting processes within themantle– the interior part of the Earth between the super-heated core and the thin outer crust—produce magma which rises up hundreds of kilometers and eventually erupts on...
. As layers of sediment were deposited on the ocean floor, the decaying remains of plants and animals were integrated into the forming rock. The organic material eventually transforms into oil and gas after being exposed to specific temperatures and pressure ranges deep within the earth's crust....