The Gobi desert is cold and dry. There is nothing really there. The people living there are mainly nomadic.
Answer:
Scientists believe that plate tectonics is an example of an internal force that changes the Earth’s crust.
Plate tectonics is a theory that describes the motion of seven large plates, and many other smaller plates of the Earth's lithosphere. When they collide they can make mountains or we can feel their motion as earthquakes. Their motion is responsible for the continental shift and it made our continents look the way they look today.
Answer:
An independent state consisting of a city and its surrounding territory is called a city-state.
Explanation:
There are multiple types of independent states, and there are mutliple criteriums on which the definitions are made. A big portion of the smallest states, which are also very interesting, tend to fall into the category of city-states. This type of state is basically when one major city and its close surrounding territory make up the whole state.
Such states are nothing new, as they have existed since the development of the first civilization in Mesopotamia, through antiquity with the Greek and Phoenician city-states being an example, the Italian city-states during the Middle Ages, etc. Nowadays, there are still states of this type, and good examples are Monaco, Andora, Vatikan, and San Marino.
Most are decomposers that consume simple carbon compounds, such as root exudates and fresh plant litter. By this process, bacteria convert energy in soil organic matter into forms useful to the rest of the organisms in the soil food web. A number of decomposers can break down pesticides and pollutants in soil.
