A. Fossil Evidence is correct.
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Hypotheses are initial educated guesses that can be tested through experiments, while theories are comprehensive explanations for observed phenomena, supported by abundant empirical evidence.
Hypotheses and theories are both significant terms used in the scientific method, but they serve different roles. Hypotheses are initial educated guesses or predictions about a particular situation, which are testable and falsifiable. Hypotheses generally arise from observations and are consequently used to conduct an experiment.
On the other hand, Theories are more comprehensive, detailed and broad explanations of observed phenomena, substantiated by a significant amount of empirical evidence gathered through multiple experiments and observations. Theories are not simply educated guesses but are well-supported explanations that can make accurate predictions about the natural world.
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The federal government to say state laws are unconstitutional
1. 16 Days of No Violence Against Women. This is an international campaign by individuals and groups to call for the elimination of all forms of violence against women.
2. Domestic Violence Act, 1998. This is to offer maximum protection to victims from domestic abuse.
3. Children’s Act 2005. This is to protect the children, their rights and provide them with their needs.
Answer:
Explanation:
a system of two stars that are gravitationally bound to and in orbit around each other
Binary stars are two stars orbiting a common centre of mass. The brighter star is officially classified as the primary star, while the dimmer of the two is the secondary (classified as A and B respectively). In cases where the stars are of equal brightness, the designation given by the discoverer is respected.
Binary pairs can be classified based on their orbit. Wide binaries are stars that have orbits that keep them spread apart from one another. These stars evolve separately, with very little impact from their companions. They may have once contained a third star, which booted the distant companion outward while eventually having been ejected themselves. Close binaries, on the other hand, evolve nearby, able to transfer their mass from one to the other. The primaries of some close binaries consume the material from their companion, sometimes exerting a gravitational force strong enough to pull the smaller star in completely. The pairs can also be classified based on how they are observed, a system that has overlapping categories. Visual binaries are two stars with a wide enough separation that both can be viewed through a telescope or even with a pair of binoculars. Five to 10 percent of visible stars are visual binaries. Spectroscopic binaries appear close even when viewed through a telescope. Scientists must measure the wavelengths of the light the stars emit and determine their binary nature based on features of those measurements.
Eclipsing binaries are two stars whose orbits are at an angle so that, from Earth, one passes in front of the other, causing an eclipse. This feature is based on the line of sight rather than any particular feature of the pair.
Astrometric binaries are stars that seem to dance around an empty space; that is, their companions cannot be identified but only inferred. Such a companion may be too dim to be seen, or could be hidden in the glare from the primary star.
Stars referred to as double stars are two that appear close together in the sky visually, but are not necessarily anywhere near one another in space.