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Vika [28.1K]
3 years ago
10

Tectonic activity happens when changes to the Earth's crust are caused by __________. A. changes to the Earth's gravity B. chang

es to the Earth's temperature C. the movement of the Earth's plates D. the rising of the Earth's oceans Please select the best answer from the choices provided A B C D
Geography
1 answer:
Marina CMI [18]3 years ago
8 0

Answer:

C. the movement of the Earth's plates

Explanation:

The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.This movement is called plate motion, or tectonic shift. (National ocean service)

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Explanation: Dear Sirs:

    I am writing today to urge you as strongly as possible to stop your deforestation program in the rain forest there in South America. Although for you the objective is financial gain, for the rest of us it is the destruction of land, habitats, people and eventually, the Earth.

   Deforestation is a process where large areas of forests are cut down to be used for farming, grazing land for cattle, and housing. This is especially true inn the South American rain forest where you are working. These are not necessarily bad things, but the effects of deforestation are devastating. Deforestation is achieved by cutting or burning of trees from a widespread area. Why does this matter?

    When deforestation occurs in an area, animals and plants are forced to move from their natural habitat. For many of these species they are unable to survive in new forced into areas. When the trees are cut down, the stumps are then burned to release nutrients into the soil to enrich it for farming. This is called, "slash and burn." However because of the heavy rains,and no tree roots to hold the soil, the nutrients are washed away and soon the farmers must move to a new area, and start the process all over.

      Further, deforestation can cause climate change. Obviously without the trees available to capture the Greenhouse gases, like carbon dioxide, stopping the gases from accumulating in the atmosphere and warming our planet. Climate change is a real issue that must be addressed if our planet is to survive.

       With all of these problems, what are the benefits? Who wins? Who loses? The benefits are to your company who now have a large tract of freshly cleared land that can be used for farming, cattle grazing, logging or housing. As always the almighty dollar comes to the forefront. The losers are the plants, animals and indigenous people who live in that area. Forced to relocate, many of all the groups will not survive. With the increased use of deforestation, the benefits are far outweighed by the cost- our planet Earth.

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