What happened to the "leftovers" from the formation of our solar system?
What will be an ideal response?
Answer: Not all planetesimals and embryos accreted to form planets. Many of the small objects left in the inner solar system fell into the Sun. Hundreds of other objects were flung to the outer edges of the solar system to form sort of a planetary junkyard called the Kuiper Belt…Several dozen embryos escaped further collisions to become the moons trapped by the gravitational field of various planets. Some of the leftover debris still spins as rings around the outer planets, most notably Saturn. In addition, a cluster of irregularly shaped, rocky planetesimals called asteroids form an orbiting belt between Mars and Jupiter.
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An example that comes closest to being a true nation-state would be
A) the United States. B) Germany. C) Iceland. D) China.
The process of ice transforming directly into water vapor without first going into the liquid phase is termed ____
A) evaporation B) sublimation C) condensation D) precipitation
Salt water may contribute to rapid erosion, and thereby, result in breakup of rocky cliffs through chemical reaction with the rocks.
Answer the following statement true (T) or false (F)
Double-blind studies are especially useful in
A. Opinion surveys B. Double-blind studies are not useful in any situation C. Genetic experiments D. Statistical analysis E. Health studies