Question

"2020-2021 T-Math-Geo-T1-CBT: Section 1 - No Calc

Select each transformation that carries a square onto itself."
"The Aleutian Trench is an underwater feature, near Alaska, formed by the movement of two tectonic plates. As the North American Plate moves toward the Pacific Plate, the lower edge of the Pacific Plate becomes part of the mantle.
Which geologic event often occurs along crustal plate boundaries?"
A. Earthquakes
B. Volcanic eruptions
C. Mountain formation
D. Oceanic trench formation

Answer 1

Geologic events commonly associated with crustal plate boundaries include earthquakes. Convergent plate boundaries, such as the one near the Aleutian Trench, experience seismic activity due to subduction. Plate tectonics is the overarching theory describing such geological occurrences.

Step-by-step explanation:

The geologic event that often occurs along crustal plate boundaries, such as where the North American Plate moves toward the Pacific Plate, is earthquakes. This occurs because plate tectonic boundaries are typically associated with seismic activity due to the movement and interaction of the Earth's rigid lithospheric plates. When we consider convergent plate boundaries, where one plate is subducted beneath another, the stress and strain caused by this movement often lead to earthquakes. An example of this is the Aleutian Trench near Alaska, where tectonic activity between the Pacific and North American Plates can generate significant earthquakes.

The theory of plate tectonics explains how the slow movement of these plates can lead to various geological features and events. Subduction zones not only give rise to earthquakes but are also marked by features like ocean trenches and can lead to the formation of volcanoes due to the melting of subducted material in the mantle. Moreover, the interaction of plates can result in the creation of mountain ranges as a result of the compression and uplifting of the Earth's crust.