The two most important processes in heating the interiors of the terrestrial worlds are ________.
A) (1 ) volcanism; (2 ) tectonics
B) (1 ) heat from convection; (2 ) heat from thermal radiation
C) (1 ) heat deposited by the process of formation; (2 ) heat that came from the gravitational potential energy of incoming planetesimals
D) (1 ) heat deposited by the process of formation; (2 ) heat released by radioactive decay
Question 2
Which of the following is not evidence for dark matter?
A) gravitational lensing around galaxy clusters
B) X-ray observations of hot gas in galaxy clusters
C) the broad absorption lines found in the spectra of elliptical galaxies
D) the flat rotation curves of spiral galaxies
E) the expansion of the universe
The Trundholm Sun chariot pulled by a horse is a sculpture believed to be illustrating an important
Martian tripod illustration from the 1906 French edition of The War of the Worlds by H.G. Wells.
Important Motor Regions of the Human Brain
Vertebral column. Avoid heavy pressure directly over spinous processes.
Climate change is an important vector for human diseases
Shoreline Processes