Answer:
Ridge and valley landscapes are created by the<u> tectonic movements of the tectonic plates.</u>
Explanation:
The lithosphere is a rigid outermost shell of the Earth. This lithosphere is broken into<u> tectonic plates.</u> The large scale movements of the tectonic plates result in the formation of topographic features like<u> the mountains, volcanoes, valleys, ridges and oceanic trenches. </u>
Therefore, if the tectonic plates are moving away from each other and create a split, it leads to the formation of a<u> valley</u>. Other environmental factors that can facilitate the formation of a valley are climatic weathering, water, wind erosion etc.
The formation of<u> ridges</u> generally occurs due to tectonic deformation driven by subduction zones, thrust faults, etc. Ridges can also be formed by the tectonic deformation caused by magma present in the deeper layers of the Earth. As, the magma pushes the two plates away, a ridge is formed.
T<span>he most important inventions for spreading European influence would be the method of getting quinine from cinchona tree bark, the Maxim gun, and the Repeating Rifle. The method of getting quinine would be because malaria had been a large problem in central Africa and someone was able to cure it, The Africans would believe that they were more powerful than they had thought. The two guns also could spread influence through force if they were not willing to listen.</span>
<h3>ANSWER:</h3>
A. It gauges fault movement during an earthquake.
D. It increases in magnitude as the amount of damage increases.
E. It determines an earthquake’s magnitude based on the size of its seismic waves.
<h3>EXPLANATION:</h3>
The Richter magnitude scale determines the magnitude that is the size of the earthquake. It can measure earthquakes even of 4.5 or above all over the world through the use of seismograph where seismic waves interprets the magnitude of earthquake. A Richter number of less than 2.0 is not felt by people whereas Richter number of 8.0 to 9.9 show massive destruction. Hence the magnitude of increases of Richter scale when damage is increased.
The Roman government had a republic and some of there principles like electing a leader its still used in the American government today.
Well the big cities were by the river back then for importing goods by the boat
