Question

according to the passage, what is the name given to the layer of earth on which the tectonic plates float? answer: a. crust b. mantle c. asthenosphere d. lithosphere question: according to the passage, what is the primary cause of earthquakes? answer: a. the movement and interaction of tectonic plates b. changes in the earths magnetic field c. erosion of mountain ranges d. volcanic eruptions

Explanation:

The asthenosphere is the semi - fluid layer of the Earth's mantle on which tectonic plates float. Earthquakes are mainly caused by the movement and interaction of tectonic plates.

Answer:

1. C. Asthenosphere
2. A. The movement and interaction of tectonic plates