Answer:
b. silica
Explanation:
The majority of the volcanoes that form at subduction zones, or convergent plate boundaries, are stratovolcanoes. These volcanoes are also called composite volcanoes. The stratovolcanoes are known to have high to intermediate silica content of the lava they release. The eruptions tend to be periodic, and they are explosive and effusive in general, though there are exceptions. The fact that the lava is high to intermediate in silica content means that the lava is medium to highly viscous. Because of this, the lava tends to trap the gases in it, and as it reaches the surface and the temperature and pressure sharply change, the gases explode, resulting in eruptions that have lot of explosions and propelling of pyroclastic material.
Mr. Luther King Jr. stood up for all races to be equal. He believed that nobody should be treated with disrespect because of their skin color. He also gave many famous speeches. I hope that's what your question was asking.
Answer:
Una persona con espíritu emprendedor puede enfrentar cualquier reto que se le presente a causa del ambiente y el entorno porque está dispuesta a alcanzar sus metas, decidida a hacerlo, y eso significa que superará todos los obstáculos que estén en su camino.
Explanation:
Para responder esta pregunta tienes que explicar la frase acerca de las personas con espíritu emprendedor. Una persona con<u> espíritu emprendedor</u> tiene las características de cumplir siempre con las metas que se propone a pesar de los obstáculos y de tener habilidades de liderazgo.
Answer:
Explanation:
Desertification:
The process of the land degradation in arid , semi - arid , and sub - humid areas because of the factors , human activities , climatic variations .
This process lead to persistent degradation of the dry land and ecosystem because of some variation in climate and man - made activities .
The major cause of Desertification are -
1. Overpopulation
2. Overgrazing
3. Deforestation
4. Unsustainable agriculture techniques
5. Climate change
6. Stripping of land resources .
7. Overgrazing of the land by the cattle and wild stock.