Answer:
b. Very little historic landmarks exist there because of fires set in World War II
Explanation:
Vienna is considered as one of the most beautiful cities in the world. It is a city with long tradition of being a cultural center as the city was just packed with great minds from all fields. That also led to building of very beautiful architecture. The World War II was threat, but Vienna was not badly affected by it, and the city managed to preserve its historic landmarks. It is actually one of the best preserved cities in the world when it comes to old architecture, and there has been lot of effort put in it. It is no wonder that it is the capital of Austria, still is seen as a cultural center, and being one of the most attractive cities to visit in the world.
Answer:
elastic deformation: the rock returns to its original shape when the stress is removed.
plastic deformation: the rock does not return to its original shape when the stress is removed.
fracture: the rock breaks.
Explanation:
Stress is the force applied to an object. In geology, stress is the force per unit area that is placed on a rock. Four types of stresses act on materials.
A deeply buried rock is pushed down by the weight of all the material above it. Since the rock cannot move, it cannot deform. This is called confining stress.
Compression squeezes rocks together, causing rocks to fold or fracture (break) (figure 1). Compression is the most common stress at convergent plate boundaries.
Rocks that are pulled apart are under tension. Rocks under tension lengthen or break apart. Tension is the major type of stress at divergent plate boundaries.
When forces are parallel but moving in opposite directions, the stress is called shear (figure 2). Shear stress is the most common stress at transform plate boundaries.
Stress In Earth’s Crust
Enormous slabs of lithosphere move unevenly over the planet’s spherical surface, resulting in earthquakes. This chapter deals with two types of geological activity that occur because of plate tectonics: mountain building and earthquakes. First, we will consider what can happen to rocks when they are exposed to stress.