Semester 1 Earth Science Exam -

The image shows the area where the Mississippi River empties into the Gulf of Mexico and forms a bird’s foot delta. Images such as these are used to monitor changes to areas on Earth.

• River Sediments
• underwater plants
• salt from salt water
• sand from the Gulf of Mexico

Which of the following is NOT a way to conserve home water use?

• turning off the water while brushing teeth
• using a washing machine when it is fully loaded
• fixing leaks in faucets
• watering the lawn daily

Scientists have discovered evidence that suggests that parts of Africa, India, Australia, and South America were once covered with large ice caps. This is an example of which of the following types of evidence for the theory of plate tectonics?

• evidence from ancient climactic changes
• evidence from the greenhose effect
• evidence from glacier movements
• evidence from global warming

Which of the following forms mountains?

• weathering and erosion
• plate movements
• conduction currents
• volcanic eruptions

Major geological events like volcanic eruptions, earthquakes, or mountain formations are MOST likely to occur

• boundary of two tectonic plates
• along metamorphic rock formations
• in the center of a tectonic plate
• along sedimentary rock formations

Ninety percent of the world's earthquakes occur in an area around the Pacific Ocean called the Ring of Fire. The high rate of earthquake activity in the area called the Ring of Fire provides evidence for

• the formation of new islands.
• tectonic plate movement.
• the recycling of rock in the rock cycle
• climate change from global warming

Geologists are conducting a study on many layers of different types of rock in the Grand Canyon.These geologists will likely find ancient fossils that reveal the history of life near the Grand Canyon in

• igneous rock layers
• layers of sedimentary rock
• layers of volcanic rock
• metamorphic rock layers

Heat from Earth's core causes chemical and mineral changes which turns sedimentary rock grains into solid sedimentary rock layers. This process is known as

• erosion
• transportation
• cementation
• deposition

Subduction occurs when an oceanic crustal plate sinks below a continental crustal plate. Subduction is MOST likely to

• form a volcano
• cause an earthquake
• form an island
• form a rift valley

Seafloor spreading is MOST likely to cause the formation of a(n)

• volcano
• rift valley
• tsunami
• earthquake