What are tectonic plates? A. Small pieces of the Earth's crust. B. Large pieces of the Earth's crust that move slowly. C. Pieces of the moon. D. Pieces of the sun. 相关知识点: 试题来源: 解析 B。解析:文章中提到“Tectonic plates are large pieces of the Earth's crust that move ...
The plate tectonics theory explains the movement of the Earth's crust. What are the major types of plate boundaries? A. Divergent, convergent and transform B. Hot, cold and medium C. Solid, liquid and gas D. Mountainous, flat and hilly ...
There are a number of different kinds of cheesecake crusts, some of which are prepared from scratch, and others that use commercially produced cookies or wafers as a base. The most commonly used cheesecake crust in the United States, and some other areas, is based on graham crackers. Similar...
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The different types of volcanoes are cinder cone, composite, shield, and lava volcano. The classification of volcanoes is based on the time of occurrence, and they are active, dormant, and extinct. Click here to learn about types of volcanic eruptions
Planet Earth is made up of four overlapping subsystems that contain all of world’s land masses, water sources, living organisms, and gases. These four subsystems are known as spheres. Geographers break down the Earth’s systems into four spheres that make up the world’s air (atmosphere),...
Igneous rocks are of two types, intrusive and extrusive. Intrusive igneous rocks are formed when the magma cools off slowly under the earth’s crust and hardens into rocks. Gabbro and granite are examples of intrusive igneous rocks. Rapid cooling results in smaller crystals while slow cooling res...
What are the signs and symptoms of chickenpox?A rash usually appears on your child's chest, back, and scalp first. The rash then spreads to the arms and legs. It begins as itchy, red bumps. The bumps form blisters that are filled with fluid. The blisters then break and crust over. ...
Scientists must know how complete the record is in order to find out how long the extinction of dinosaurs took. To use the movie example, it's like trying to find how much time has passed since an event (like a murder) occurred. If all of the frames are present, we know the amount...
An earthquake is the ground shaking caused by the sudden energy release in the earth’s crust or upper mantle of the Earth. Earthquakes can differ in length from those that are so small that they are barely felt to those that are so powerful that they propel folks into the air, wreaking...