Movement of Earth's plates causing geological changes is called:

Movement of Earth's plates causing geological changes is called:

• A. Tectonic activity
• B. Erosion
• C. Weathering
• D. Hydrological cycle

Answer: (A)

Tectonic activity, or plate tectonics, is the movement of Earth's lithospheric plates that reshapes the planet. The outer shell is broken into large plates that ride on the partially molten mantle below. Heat-driven convection currents push and pull these plates, and where they meet, their interactions—such as pushing together, pulling apart, or slipping past each other—create mountains, earthquakes, and volcanoes. Over geologic time, this plate-scale motion continually rearranges continents and oceans, which is why it’s described as tectonic activity. Erosion, which wears away rock and carries debris away, and weathering, which breaks rocks down in place, affect surface materials but don’t involve the large-scale movement of the crust. The hydrological cycle is about the movement and distribution of Earth's water, not the movement of rocks themselves.

Tectonic activity, or plate tectonics, is the movement of Earth's lithospheric plates that reshapes the planet. The outer shell is broken into large plates that ride on the partially molten mantle below. Heat-driven convection currents push and pull these plates, and where they meet, their interactions—such as pushing together, pulling apart, or slipping past each other—create mountains, earthquakes, and volcanoes. Over geologic time, this plate-scale motion continually rearranges continents and oceans, which is why it’s described as tectonic activity.

Erosion, which wears away rock and carries debris away, and weathering, which breaks rocks down in place, affect surface materials but don’t involve the large-scale movement of the crust. The hydrological cycle is about the movement and distribution of Earth's water, not the movement of rocks themselves.