Answer:
Explanation:
Externality is a microeconomic concept that aims to explain the positive or negative impact that an economic activity has on third parties. If by exercising an economic activity, a company indirectly benefits society or community, the externality is positive. If economic activity negatively impacts the surrounding community, externality is said to be negative. For example, the pollution that an industry emits in the production process has deleterious effects throughout society, being a negative externality.
Pollution as a negative externality can be classified within the scope of common resource problems. A common resource is a resource to which everyone has access without control. For example, atmospheric air is a common resource for all. When an agent pollutes this resource, it causes a negative externality, leaving everyone worse off than before the pollution.
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.
Magnitude 4.3 earthquake
If affected Nepal,India,and China
21 miles from Shigatse, Tibet, China
