The plates move slowly but, constantly and this movement is called tectonics and is therefore explained by this specific theory A. big bang theory
B. origin of the universe
C. theory of timeline
D. plate tectonic theory

D

Explanation:

The concept of plate tectonics was formulated in the 1960s. According to the theory, Earth has a rigid outer layer, known as the lithosphere, which is about 100 km (60 miles) thick and overlies a plastic ( partially molten) layer called the asthenosphere. The lithosphere is broken up into seven very large continental- and ocean-sized plates, six or seven medium-sized regional plates, and several small ones. These plates move relative to each other, typically at rates of 5 to 10 cm (2 to 4 inches) per year, and interact along their boundaries, where they converge, diverge, or slip past one another.

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i think its y= -4x-14