One student says that geologists cannot predict earthquakes. Which statement contradics the student’s conclusion?
A. Earthquakes are caused by changing
weather conditions.
B. Earthquakes can occur in every state in the United States.
C. Earthquakes are statistically more common around fault lines.
D. Earthquakes are caused by landslides occurring at Earth’s surface.
C. Earthquakes are statistically more common around fault lines.
Obsidian is a glassy black igneous rock. A sample of obsidian is shown. Which type of rock forms in a similar manner as obsidian but at a slower rate?
schist, which forms under extreme heat and pressure
conglomerate, which forms when different-sized sediments cement together
gypsum, which forms when water evaporates and leaves behind minerals
granite, which forms as magma cools deep underground
granite, which forms as magma cools deep underground
Igneous, sedimentary, and metamorphic rocks are found at the same cliff side. Which statement is correct about the rocks at this location?
A .All three types of rock will become metamorphic if they stay at the surface of Earth.
B. If this location is buried deep underground, only the metamorphic rock will melt because it has already been heated before.
C. The metamorphic rock and sedimentary rock were already at this location and magma flowed into the other rocks.
D. The igneous rock will become metamorphic rock after the rock in the cliff side turns into sediment.
C. The metamorphic rock and sedimentary rock were already at this location and magma flowed into the other rocks.
Which THREE statements are correct about the effects of these plate boundaries on Earth's lithosphere?
A. In Type 1 boundaries, new lithosphere will form because of the plates pulling apart from each other.
B. In Type 2 boundaries, one plate is forced under the other, causing the lithosphere to form trenches.
C. In Type 3 boundaries, one plate slides next to the other, creating ocean mountain ranges.
D. Earthquakes tend to occur at both Type 2 and Type 3 boundaries.
E. Volcanoes tend to occur at both Type 1 and Type 3 boundaries.
A. In Type 1 boundaries, new lithosphere will form because of the plates pulling apart from each other.
B. In Type 2 boundaries, one plate is forced under the other, causing the lithosphere to form trenches.
D. Earthquakes tend to occur at both Type 2 and Type 3 boundaries.
Which of the following is true about tectonic plate motion?
Tectonic plates move in directions that are opposite the directions of underlying mantle convection currents.
All tectonic plates move in the same direction at the same rate.
Tectonic plates move in directions that closely match the directions of underlying mantle convection currents.
Tectonic plate motion is not related in any way to mantle convection currents.