Basalt is a dark-colored, fine-grained,igneous rockcomposed mainly of plagioclase and pyroxene minerals. It most commonly forms as an extrusive rock, such as a lava flow, but can also form in small intrusive bodies, such as an igneous dike or a thin sill. It has a composition similar to...
百度试题 结果1 题目What is the mantle made of? A. Water B. Air C. Hot rock D. Solid 相关知识点: 试题来源: 解析 C。地幔是由热的岩石组成。反馈 收藏
听力原文:At first, what were balls made of?(9)A.Grass or leaves.B.Feathers or hay.C.Rock.D.Animal skin. 相关知识点: 试题来源: 解析 A解析:注意抓听句子“At first,balls were made of grass or leaves held together by vines.”反馈 收藏 ...
The majority of the Nazca Plate is made of igneous rock. As an oceanic tectonic plate, the main composition is basalt, a type of igneous rock made... Learn more about this topic: Tectonic Plates | Overview & Names from Chapter 5/ Lesson 5 ...
There are many different rocks in the world that are characterized by their shape, size, hardness, and how they are made. Basalt is a beautiful, dark rock that contains many minerals.Answer and Explanation: Basalt is an igneous rock because it is made from the cooling of liquid rock. ...
Sunstone (specimens of labradorite feldspar with reflective mineral inclusions) Turquoise (a greenish blue copper mineral)Tumbled igneous and metamorphic rocks: Some rocks will take a nice polish. Shown here are granite, basalt, gabbro, gneiss, and other types of rock collected from Ohio River sedim...
A. Liquid rock B. Solid rock C. Hot, semi-solid rock D. Cold, solid rock 相关知识点: 试题来源: 解析 C。解析:“The mantle is located beneath the crust and is much thicker. It is made up of hot, semi-solid rock that flows very slowly.”,地幔由热的半固态岩石组成。反馈...
百度试题 结果1 题目This art work is rough and heavy. What could it be made of? A. silk B. rock C. rubber D. aluminum 相关知识点: 试题来源: 解析 B。岩石是粗糙且重的,丝绸、橡胶和铝都不符合。反馈 收藏
The short answer – a shellfish – to narrow it down even further, it is a mollusc or mollusk. It is an edible invertebrate mainly found in cold water coastal rocky shelves and reefs. The abalone attaches itself to a rock by a foot and then builds it’s shell around it. Abalone shell...
Brown and golden sand is usually made of feldspar, which is a brown- to tan-colored mineral, as well as quartz, which contains iron oxide, giving it a golden-brown hue. Darker black sand is caused by basalt, which is formed from volcanic action. This sand is usually found in the ocean...