A future news release might report that a new planet has been found around a star very similar to our Sun. The system contains other planets as well like our solar system. This newly discovered planet is claimed to have a mass 40 times that of Earth and is located nearly 25 AU from the star it orbits. Which of the following would be a reasonable prediction about this planet, assuming it formed like our solar system? I. The planet will probably have a mean density of around 5 g/cm3. II. The planet will probably have a radius of around five to ten times greater than Earth's. III. The planet will probably have several satellites. IV. The planet will probably have a composition that is mostly hydrogen and helium.
a. I & IV
b. I, II, & III
c. II, III, & IV
d. I, II, & IV
e. I, II, III, & IV
Question 2
Which one of the following IS NOT a characteristic of terrestrial planets?
a. low average density
b. orbits inside the asteroids
c. craters in old surfaces
d. small diameters
e. very few satellites
Major types of microbial cell aggregations found in phylum Cyanobacteria.
star cluster NGC 6604
A star-forming region in the Large Magellanic Cloud.
Dwarf Planet Eris
ACTH, aldosterone, and ADH release.
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum