A
What is the earth's thinnest layer?
crust
The crust is divided into _________
tectonic plates
_______________ is the breaking of rock into smaller pieces by forces due to gravity, ice, plant roots, or other forces.
Mechanical Weathering
How are igneous rocks formed?
Cooling of lava or magma
The focus of an earthquake can be determined by _____________
triangulation.
What are the layers of the earth?
Inner Core, Outer Core, Mantle, Crust
Where do earthquakes most often occur?
Along Faults and Plate Bounderies
______________ is the changing of materials in a rock by chemical processes.
Chemical Weathering
What takes place in the mantle causing hot mantle to rise and cool mantle to sink?
Convection
How does volcanic activity impact the geosphere?
Adding nutrients to the soil
What effects do we feel when tectonic plates move abruptly?
Earthquakes
What is the place where the earthquake originates?
Focus
In geology, _________ are areas in the Earth's mantle where heat rises in the form of a mantle plume, causing volcanic activity at the surface away from plate boundaries.
hotspots
Frequent earthquakes in an area are evidence of _________________
Plate boundary
When __________ plates collide, fold Mountains and faulted rock layers form, but no active volcanoes.
continental
What is denser?
a. Oceanic Crust
b. Continental Crust
The place on Earth’s surface above a focus is called an __________
epicenter
Hawaii is an example of what type of geological process?
Hot Spot
_____________ are underwater landforms that form where tectonic plates are diverging.
Mid ocean ridge
How does volcanic activity impact the hydrosphere?
Makes Rain Acidic
Lithosphere is made of the top part of the ______and the earth's crust.
Mantle
How are sedimentary rocks formed?
Compaction and Cementation
Sea-floor spreading is an example of what type of plate boundary?
Oceanic Divergent
Unlike convergent or divergent boundaries, there is no ____________ along transform boundaries.
volcanic activity
What gases are increased in the atmosphere immediately following volcanic activity?
Sulfur Dioxide, Carbon Dioxide, Water Vapor