History of Earth
The law of superposition states that in undisturbed rock layers, the oldest layer is located
at the bottom.
This event occurs most frequently along sliding plate boundaries.
Earthquakes
The area of land where all the water that falls in it drains off and goes to a common outlet.
Watershed
Humans depend on the ocean for this gas, produced by phytoplankton, which we need to breathe.
Oxygen
The force that keeps all objects orbiting other objects.
gravity
Similar remains of these found on different continents support the theory of plate movement
Fossils
This feature is formed specifically when an oceanic plate subducts under a continental plate.
Trench or Volcanic Arc
Fertilizer runoff from a farm is a harmful human influence that affects this type of "underground" water.
ground water
Overfishing is a human activity that primarily impacts this ocean systems by
take too many resources.
The largest planet in our solar system is this type of planet
gas giant , Jovian
This theory explains how the Earth’s surface is broken into moving pieces
Continental Drift, Plate Tectonics
Unlike boundary volcanoes, volcanoes in the middle of a plate are formed by these plumes of hot magma.
hot spots
Planting (trees/grass) along a river is a beneficial activity for this type of water.
surface water
Runoff from cities can lead to "Dead Zones" in the ocean due to a lack of this vital element.
Oxygen
An object is observed in the sky orbiting the Sun. As it approached the Sun, a tail began to appear. Based on the observations, how should the scientist classify the object?
Comet
The scientist that developed the theory of continental drift.
Alfred Wegner
The largest underwater mountain range was created by this type of boundary.
divergent
This harmful human activity involves clearing trees, which leads to more sediment entering our surface water.
deforestation / logging
These underwater structures, which are home to vast amounts of marine life, are highly sensitive to temperature changes.
coral reefs
Two main requirements for life on Earth.
Proximity to Sun, liquid water
This supercontinent is the most famous piece of evidence showing Earth has changed over time.
Pangaea
These two plates create a transform boundary resulting in frequent earthquakes in California
North American and Pacific
Industrial, agricultural, and residential activities of humans most likely affect the groundwater in the area by
polluting the water
Humans depend on the ocean for food and for maintaining this
stable temperatures
The area of space that includes the Earth and Mars.
Habitable Zone