SFSU ERTH 110 Exam

SFSU ERTH 110 Exam
According to the textbook reading for this week (Module 1), which definition below
would be the best definition of Geology?
Geology is the scientific study of the nature, origin and evolution of the Earth and other
terrestrial bodies.
What are the key differences between a scientific hypothesis and a scientific theory
according to the lecture? Choose from the following:
A theory is an accumulation of many well-proven and well-accepted hypotheses that
explain why phenomenon occurs.
What are the key differences between a scientific theory and a scientific law/principle
according to the lecture? Choose from the following:
A law explains the process of a phenomenon, but not why it occurs like a theory does.
According to the lecture, what energy source is Earth using primarily for its internal
processes?
Radioactive decay
According to the lecture, what energy source is Earth using primarily for its
external/surficial processes?
Solar energy
Which of the layers listed below is defined as a layer by composition?
Core
Which of the layers listed below is defined as a layer by its physical properties
Lithosphere
Of the choices below, which one represents 100% of the Earth's mantle?
Asthenosphere, Mesosphere and the ultramafic section of the Lithosphere.
Which layer from the choices below generates Earth's magnetic field?
Outer Core
Which layer(s) from the choices below are defined by physical properties and could be
considered a ductile solid?
Asthenosphere & Mesosphere
Which layer defined by physical properties is considered a liquid?
Outer Core
Which statement below best compare