Gravity
The Sun the center of the solar system because of this.
What is greater mass/gravity?
This is an impression of an organism from long ago.
What is a fossil?
The term for the enormous slabs of lithosphere that float on the upper mantle.
What are tectonic plates?
An area where all of the water flowing downhill collects in rivers, lakes and streams.
What is a watershed?
The unsustainable practice of removing fish from the oceans faster than they can reproduce.
What is overfishing?
Planets closer to the Sun revolve around it _________.
What is faster?
Used to determine the relative age of layers of undisturbed sedimentary rock.
What is an index fossil?
The places where two or more plates meet and interact with each other.
What are plate boundaries?
The term for a natural underground storage place for water.
What is an aquifer?
Improper disposal of waste water with this in it can make people sick and could cause death.
What is e coli?
The farther away an object in the solar system is from the Sun, the less it is affected by this.
What is the Sun's gravity?
This states that in undisturbed layers of rock the oldest layers are on bottom and newest are at the top.
What is the Law of Superposition?
The type of plate boundary where plates move together forming mountains, volcanoes and trenches.
What is a convergent boundary?
Aquifers, wells, springs, and water in soil and rock are all examples of this.
What is groundwater?
Pollution that comes from a single, identifiable source.
What is point-source pollution?
This is the reason that objects in the solar system do not fly into the Sun.
What is inertia?
This is a term used to describe a break in the layers of sedimentary rock.
What is a fault?
Two plates moving away from each other causing rifts and mid-ocean ridges.
What is a divergent boundary?
The building of impervious surfaces, improper waste disposal and littering all have ____________ effects on the watershed.
What are negative effects?
These events caused by pipeline failures and shipping accidents cause chemical pollution in oceans and cover marine animals with oil.
What are oil spills?
This states that "An object at rest stays at rest, and an object in motion stays in motion at a constant speed in a straight line unless acted upon by an unbalanced force".
What is Newton's First Law of Motion?
This rock formation is newer that all of the layers of rock that it cuts through.
What is an igneous intrusion?
The San Andreas Fault is an example of this, where two plates grind past each other.
Farmers can reduce the negative effects of farm runoff by growing plants that need less of this.
What is fertilizer/nutrients?
Overfishing, bycatch, marine habitat destruction and pollution are all caused by this.
What is commercial (industrial scale) fishing?