Briefly discuss stellar evolution. What forces are opposing one another throughout the life of a star and how do they influence the various stages in the life cycle of a star?
What will be an ideal response?
Stars form when dense pockets of molecular clouds condense. Gravity and explosion from fusion oppose each other, and in the beginning, gravity is the overriding factor, though as the star burns out, an explosion takes over at the late stage of the star's life.
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According to the scientific method, a hypothesis
A) must have already been tested in previous experiments B) must be phrased in highly technical jargon C) must always be understandable to the layperson D) must lead to predictions
How was radioactive carbon dating useful for the atmospheric calcium additions calculations?
A) It was not useful. B) It helped to establish the amount of calcium present. C) It helped to establish the rate of deposition. D) It was used as a standard amount for a mineral in the soil.
This city in Latin America is known as the legendary "lost city of the Inca"
a. Machu Picchu. b. Teonochtitlan. c. Chichen Itza. d. Tikal.
A dynamic high-pressure area at the surface is closely associated with strong ________
A) ascent of air B) descent of air C) winds D) storms E) tornadic spin