Question

essay on earth quack​

Answer 1

Answer:

➜Earthquake is defined as a phenomenon where tectonic plates slip past one another, creating seismic waves that travel through the earth’s rocks. Depending on the intensity of the earthquakes, the effects can vary from minor structural damages to buildings to complete collapse, resulting in loss of life and property. Sometimes, when an earthquake originates from the middle of the ocean, it can cause extremely large and destructive waves called tsunamis. However, an earthquake does not directly pose danger to a person; in other words, people cannot be shaken to death by an earthquake.

Understanding the Cause of Earthquakes

Now that we know what is an earthquake, we shall explore how it is caused. The earth is made up of four layers – the inner core, outer core, mantle, and crust. The mantle and the crust essentially behave as a very thin layer of shell on our planet’s surface. However, this shell is not composed of one single piece; there are several pieces that exist under the earth, each slowly sliding past one another. These pieces are called the tectonic plates. There are in fact seven tectonic plates that are found under the earth’s crust:

African plate

Antarctic plate

Eurasian plate

Indo-Australian plate

North American plate

Pacific plate

South American plate

Moreover, these plates are never static, they always keep moving. Over the earth’s history, tectonic plates have merged with other plates to form even larger plates. Other tectonic plates have drifted into smaller plates and some have been even pushed under other plates (subduction). This is one of the biggest reasons why we had supercontinents in the past, and their eventual breakup into the seven continents that we know today.

Answer 2

Answer:

An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane.Groundwater extraction – decrease in pore pressure.

Groundwater – increase in pore pressure.

Heavy rain.

Building dams. are some causes of earthquake

We cannot prevent natural earthquakes from occurring but we can significantly mitigate their effects by identifying hazards, building safer structures, and providing education on earthquake safety. By preparing for natural earthquakes we can also reduce the risk from human induced earthquakes.

Explanation:

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