Question

Rocks that mostly contain fossils are?
(A) igneous rocks
(B) sedimentary rocks
(C) metamorphic rocks
(D) none of these

Answer 1

Hint: If you find that what you believe is a fossil or an artifact, the most important thing is to put it where you found it. When scientists study these items, we need to know exactly where they came from so that we can know all the information about them.

Complete step by step solution
Metamorphic rocks: Metamorphic rocks are formed by other rocks that change due to heat or pressure. They are not made of molten rock but will melt to form igneous rock. Earth movement can cause rocks to be deeply buried or crushed. As a result, the rock is heated and subjected to great pressure.

Igneous rockThe place where the igneous rock was found. The deep seafloor (oceanic crust) is almost entirely composed of basalt, with peridotite under the mantle. Basalt may also erupt on the arc of a volcanic island or the edge of a continent to the top of the Earth's large subduction zone.

Sedimentary rocks Sedimentary rocks are formed from pre-existing rocks or biological fragments that once lived. They are formed by deposits on the surface of the earth. Sedimentary rocks usually have unique stratification or bedding. Many picturesque landscapes in the Southwest Desert show terraces and arches made of layered sedimentary rocks.
Common sedimentary rocks include sandstone, limestone, and shale. These rocks usually start as sediments carried in rivers and then are deposited in lakes and oceans. When buried underground, the sediment loses water and types of cement to form rock. Tuffaceous sandstone contains volcanic ash.

Thus, option (B) is correct.

Note: Common sedimentary rocks include sandstone, limestone, and shale. These rocks usually start as sediments carried in rivers and then are deposited in lakes and oceans. When buried underground, the sediment loses water and cement to form rock. Tuffaceous sandstone contains volcanic ash.