Which statement is true about the process of accretion?

a. it enlarges continental landmasses and forms mountains along the edges of continents.

b. it reduces continental landmasses while forming mountains along the edges of continents.

c. it results in embedded volcanic island arcs and microcontinents being left behind.

d. it causes fragments of crust to disconnect and drift away from continental landmasses.

A. It enlarges continental landmasses and forms mountains along the edges of continents.

The accretion is a process in which small objects, matter or particles gets aggregated to form a large object, landmass due to the affect of gravitational force acting on these entities. Example of accretion process includes formation of galaxies, stars, planets and mountains. Mountains are formed at the edges of continents because of accumulation of debris and sediments released between the edges is an example of accretion process.

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