Sugar and salt. Substances that do not dissolve in water are called insoluble.
Burning fossil fuels moves carbon from the geosphere to the atmosphere.
Explanation:
A carbon cycle is a model that indicates how carbon is cycled across the spheres of the earth. Burning of fossil fuels is part of this cycle indicating movement of carbon from the geosphere – since fossil fuels are derived from the geosphere (the rocks of the crust) - to the atmosphere as carbon dioxide. Again this carbon will cross over to the biosphere when taken up by plants from the atmosphere during photosynthesis
B. when limited resources cannot meet unlimited wants
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Answer:
Rank of the stars from shortest to longest distances:
Barnard's Star (M4)
61 Cygnia A (K5)
Alpha Centauri A (G2)
Sirius (A1)
Spica (B1)
Explanation:
The habitable zone, also known as the circumstellar habitable zone, is the range of distances from a star where it is not too hot and not too cold for liquid water to exist on the surface of surrounding planets.
The location of a star’s habitable zone is dependent upon its luminosity, which is the amount of light emitted by an object in a unit of time, because a star’s luminosity increases with time; and also the star's mass.
The inverse square law of light brightness can be used to determine the extent of the habitable zones for different luminosity stars with the formula:
star boundary = Sun boundary × squareroot[(star luminosity)/(Sun luminosity].
<u>The four statements which are true of the Declaration of Independence as follows:
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- the author used the ideas of John Locke
- written by Thomas Jefferson
- one section stated grievances against England
- one section stated political principles
Answer: Options A, B, D, and G
<u>Explanation:
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U.S. Declaration of Independence was adopted by the congress on 4th July 1776 declaring the independence of 13 colonies and explaining why these colonies considered themselves as independent states. Through this declaration the people of 13 colonies has expressed their protest and grievances against the British rule.
The draft of this declaration was prepared by the committee of five and the final declaration was written by Thomas Jefferson. This declaration has been influenced by the ideas of thinkers like John Locke and it laid down the political principles for the country.