Geology Review

A rock cycle diagram is shown in the picture. What is happening to rocks at location 3 in the diagram?

• Heating and Pressure

• Melting and Cooling

• Weathering and Eroding

• Compacting and Cementing

Which statement about the formation of rocks is true?

• Heat and pressure can change igneous rock to sedimentary rock

• Weathering and Erosion can change sedimentary rock into sediment

• Heat and pressure cause metamorphic rock to weather and erode

• Weathering and erosion prevent magma from changing into igneous rock

Ricardo has an igneous rock in his rock collection. Where did this rock MOST LIKELY form?

• In a volcano

• On a forest floor

• On a coral reef

• At the bottom of a river

The diagram shows four layers of Earth. Each layer is identified by a number. Which layer of Earth is composed PRIMARILY of solid iron?

• Layer 1

• Layer 2

• Layer 3

• Layer 4

Humus, or organic matter, is decayed plant and animal matter. Which Earth material contains humus?

• Rock

• Soil

• Mineral

• Lava

Moving water was the MOST important factor in forming which of these?

• Grand Canyon

• San Andreas Fault

• Rocky Mountains

• Mount St. Helens Volcano

Wind changes the surface of Earth. Which of these land formations is a result of transportation and deposition by wind?

• Delta

• Sand Dune

• Glacier

• Mountain Peak

Water is easily trapped in cracks and layers of mountain rock. Alternating high and low temperatures affect the water, which freezes and thaws many times. Which process causes changes to the rocks due to repeated freezing and thawing of trapped water?

• Chemical Weathering

• Mechanical Weathering

• Wind Deposition

• Wind Erosion

Earthquake activity in California is primarily caused by

• The lowering of aquifer levels

• The interaction of tides with the coast

• Mining activity during the nineteenth century

• Plates grinding past each other along active faults

The map shows areas with active volcanoes. Where are MOST of the active volcanoes located?

• Along the equator

• In the middle of the oceans

• On tectonic plate boundaries

• At the center of the continents