In the proto-solar system nebula, gravity pulled matter together to form larger bodies. As they collided, what happened to these bodies?
A) Oblique collisions caused individual bodies to spin.
B) The objects temporarily broke apart and then reformed into large objects, cooling rapidly during the breakup period.
C) The objects broke apart to form asteroids, much like a neutron colliding with a heavy atom produces fission.
D) Immense heat was released within the colliding bodies as gravitational potential energy was converted to heat.
D
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When a galvanometer is calibrated to read potential difference it is
A. a voltmeter. B. an ohm meter. C. an ammeter. D. none of the above
Limiting factors are physical or chemical factors that can determine the numbers of organisms in a population
Indicate whether the statement is true or false
According to environmental writer Bill McKibbin, "the great environmental story of the United States, and in some ways, the whole world" is the
a. restoration of grasslands b. regrowth of forests c. production of biofuels on forest land d. restoration of aquatic ecosystems e. restoration of saguaro cactus stands
A terrorist group in Sri Lanka fighting for what they saw as their minority rights and building links with foreign terrorist organizations are known as _____________________.
Fill in the blank(s) with the appropriate word(s).