<span>Fresh water freezes at 32 degrees Fahrenheit, and as salinity increases, the required temperature to freeze decreases.
The freezing point for water at 18 0/00 is 30.233 degrees Fahrenheit. So, for the black sea to freeze, it would need to be less than about thirty and a quarter degrees in both areas. Further for the Adriatic not to freeze it must be assumed that the Adriatic's salinity is higher, probably significantly higher as to avoid even partially freezing.
Furthermore, as the Black Sea's decreased salinity is attributed to nearby freshwater runoff, it is safe to assume that the Adriatic Sea either A) Has little or no freshwater runoff, or B) Has a mitigating factor that negates any freshwater runoff, allowing the salinity of its water to remain high.</span>
Answer:
Explanation:
At constructive margins such the mid oceanic ridge where new magma are brought to the surface, evidences abounds to support the theory of continental drift through paleomaganetism.
Continental drift is simply the moving of the land masses on earth from their original positions.
There are certain magnetic minerals in rocks that are able to record the prevailing magnetic conditions in a particular terrane. In a hot magma, at the oceanic ridge for example, these minerals align to the magnetic direction at work during the period when they are cooling. As new materials upwells, the cool layer shifts away from the margin each bearing the paleomagnetic record.
Therefore, through a series of reversals and normality in the magnetic direction, one can deduce that the continents actually moves.
A. Used fire to do controlled burns
The result of controlled burns were highly beneficial to both the Aborigines and the environment. The burnt remains of the burns were very fertile and encouraged the growth of new vegetation that would not have been able to flourish if the older growth had not been removed. The removal of old vegetation also resulted in a low chance of wild fires. Further more new vegetation was able to attract wildlife to graze, making hunting easier.
The concept of controlled burns is still used today and was/is also practiced by First Nations in North America.
Answer: B.
Remove the foundation revenues and expenses because it is a separate legal entity.
Explanation: An operating budget can be defined as an estimate of the amount of money or resources earmarked for a particular institution, activity or time frame. This involves the revenues and expenses estimated for a particular period of time.
Peggy, the hospital's CFO was right in telling David to remove the Foundation's budget because since the foundation is a separate legal entity, they should have a separate Operating budget.
Answer: (b) Planet orbit shown as a moderately-flattened ellipse slightly wider than the others with the Sun at precise center of the ellipse. Minor axis is the same as other ellipses.
Explanation:
According to the first Kepler Law of Planetary motion, the orbit of a planet around the Sun, is in the form of an ellipse <u>with the Sun at one of the two foci of that ellipse</u>. This is also valid for any mass orbiting another mass greater than the first one in the space.
In this context, the ellipse is a conic, whose eccentricity is between 0 and 1. So, when its value is 0 we are talking about a circular orbit and when it is 1, a parabolic orbit.
That is, the nearer to the value of 1 (without reaching 1) the eccentricity of the orbit is, the more elliptical it will be.
In this sense, the only option that is incorrect is:
(b) Planet orbit shown as a moderately-flattened ellipse slightly wider than the others <u>with the Sun at precise center of the ellipse</u>. Minor axis is the same as other ellipses.
This statement contradicts Kepler's first law, because the Sun is <u>at one of the two foci of that ellipse</u>. The only way in which the Sun can be at the very center of the orbit is when we talk about a circular orbit. Since a circumference is a especial case of an elipse with eccentricity zero and we get only the center instead of the two foci.
