What is the process by which he ocean floor sinks beneath a deep-ocean trench and back into the mantle known as?

Using complete sentences, explain the differences between a command economy and a market economy. what type of economic system is created when these two systems are combined? what are the benefits of combining these two systems?

Identify the type of weathering seen in each picture ? chemical weathering mechanical weathering

These are the abiotic factor or biotic factors that restricts the numbers, reproduction, or distribution of organisms.