Incidentally, volcanic islands may seem small, but the island known as the Big Island Hawaii is one of the tallest topographic features on the planet, more than five kilometers from the sea floor to the ocean surface, and almost that much again, up to its highest peak. ...
Or were scientists misunderstanding the significance of the evidence? Well, um, in the 1990s, a new study was done on the two samples, and the ocean floor samples were found to be correct, as were the samples from Devils Hole. And now it's generally believed that the samples from Devils...
The exploration of the ocean floor discovers a new species. What is a species? A. A group of animals B. A population of organisms C. A type of organism D. A habitat 相关知识点: 试题来源: 解析 C。species 是物种,是一种类型的生物。选项 A,a group of animals 是一群动物;选项 B,a ...
The Earth's crust is made of large sections called tectonic plates. These plates drift around on currents in the mantle. The place where two plates meet is called a boundary. Answer and Explanation:1 Ocean floor spreading, also known as sea flood spreading, occurs when two plates have a di...
The Ocean Floor - What's The Holdup?
The floor of the ocean is composed of basalt crust, or earth's top-most layer of thin rock. The floor of the ocean can be divided into four or five ocean bases based on geographical boundaries (e.g., continental margins, underwater mountains, and canyons), sediment composition (i.e.,...
I.阅读理解We know more about the surface of the planet Mars than we know about what is at the bottom of Earth's oceans. Until recently, scientists had mapped only about20 percent of the se a floor. But our knowl-edge of the deep seas is changing because of information from satellites....
ocean floor tectonic plate meets the edge of a continent and they push against each other, the heavier one sinks down and goes under the other one.So the…um…the oceanic plate is made of denser and heavier rock, so it begins to sink down under the continental plate and into the mantle...
,因此选项B“Sandstone can turn into sand when water is sprayed on it.”是正确的。 排序题 文章描述了寻找制作玻璃所需材料的过程,正确的顺序是: 1. Look at many different places with a lot of dirt. 2. Find dirt with the things you need in it. 3. Use a big machine to dig a hole in...
The wreckage of the cruise ship Titanic sits on the ocean floor about 3,800 meters (12,500 feet) below the surface. * Titan weighs 9,525 kg (21,000 lbs), and can travel at a speed of 3 knots (3-1/2 miles per hour) using electric thrusters. OceanGate ...