Understanding Rock Types and Formation

Which of the following characteristics is typical of igneous rocks?

• Presence of fossils

• Crystalline texture with interlocking mineral grains

• Distinct layering or bedding

• Soft texture

What process leads to the formation of sedimentary rocks?

• Cooling and solidification of magma

• Accumulation and compaction of sediments

• High heat and pressure

• Melting of pre-existing rocks

Which type of rock is likely to exhibit foliation?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

• Volcanic rock

Identify the rock type that is generally harder than its original form due to high heat and pressure.

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Organic rock

Which of the following rocks is an example of a coarse-grained sedimentary rock?

• Basalt

• Granite

• Conglomerate

• Schist

What is a common feature of sedimentary rocks that distinguishes them from igneous rocks?

• Lack of layering

• Presence of fossils

• Crystalline texture

• High density

Which rock type is typically formed from the cooling and solidification of molten material?

• Sedimentary rock

• Metamorphic rock

• Igneous rock

• Organic rock

What is the primary factor that causes the physical and chemical changes in metamorphic rocks?

• Accumulation of sediments

• Cooling of magma

• High heat, pressure, or chemically active fluids

• Erosion and weathering