The rocks formed by gradual deposition, are called A. Sedimentary rocks B. Igneous rocks C. Metamorphic rocks D. None of these

The correct answer is A. Sedimentary rocks.

Sedimentary rocks are formed by the gradual deposition of material, usually from the remains of other rocks or organisms. This material can be transported by water, wind, or ice, and it is eventually deposited in layers. Over time, these layers are

Igneous rocks are formed when molten rock, or magma, cools and solidifies. This can happen below the surface of the Earth, in which case the igneous rock is called intrusive, or it can happen at the surface, in which case the igneous rock is called extrusive.

Metamorphic rocks are formed when existing rocks are subjected to heat and pressure. This can happen when rocks are buried deep underground, or when they are involved in mountain building. Metamorphic rocks can be formed from any type of rock, including igneous, sedimentary, and metamorphic rocks.

D. None of these is not the correct answer.