The cycling o f Earth's materials

What happens when sediments go through compaction and cementation?

• They become metamorphic rocks

• They become sedimentary rocks

• They become intrusive igneous rocks

• They become extrusive igneous rocks

Answer explanation

As seen in the photo, sediments go through cementation and compaction to become sedimentary rocks

Why are plant roots considered a weathering agent?

• The roots of the plant will expand and freeze, which will break the rock

• The plant roots will move upwards because it needs sunlight, which will break the rock

• The plant roots will expand and will start filling the cracks, which will break the rock

• The plant leaves release chemicals which can chemically break the rock

Rocks can be broken by physical and chemical means. The transportation of rock away from their original location is _________________. Rock, soil and sediment settle into their new locations by the process of _________________.

• Erosion, deposition

• Deposition, weathering

• Weathering, Deposition

• Erosion, weathering

Which formation process do most sedimentary rocks follow?

• cementation, compaction, deposition, erosion

• erosion, compaction, cementation, deposition

• erosion, deposition, compaction, cementation

• None of the above

What is an example of sediments being eroded?

• Sediments get dragged along a river

• Sediments get compressed together

• Sediments are made when a rock breaks

• Sediments cool down and become solid

Most types of this rock have parallel bands of black and white.

• Sedimentary rocks

• Metamorphic rocks

• Igneous rocks

• All of the above

What rock can an Igneous rock form?

• Sedimentary rocks

• Metamorphic rocks

• All of the above

What happens when metamorphic rocks melt?

• It turns into lava

• It turns into Igneous rocks

• It turns into sediments

• It turns into magma