Answer:
The field lines go out of Earth near Antarctica, enter Earth in northern Canada, and are not aligned with the geographic poles.
Explanation:
The two poles North pole and South pole of the earth are distinct from the magnetic north pole and south pole of the earth. The magnetic north pole is the point from where the magnetic field of the Earth points downwards in the vertical direction. There is a gradual change in the magnetic poles with the passing of the time. The magnetic fields have an extension from the interior of the Earth to the outer space.
Answer:
B. 3.0 mol·L⁻¹ NaCl
Explanation:
Freezing point is a <em>colligative propert</em>y: it depends only on the <em>number of particles</em> in solution.
The for freezing point depression Δ<em>T</em>_f is
Δ<em>T</em>_f = <em>iK</em>_fb
where
<em>i</em> = the number of moles of particles available from one mole of solute
<em>K</em>_f = the molal freezing point depression constant
<em>b</em> = the molal concentration of the solute
All your solutions are aqueous NaCl. They differ only in their concentrations.
Thus, the most concentrated solution will have the greatest freezing point depression and the lowest freezing point.
Answer:
Explanation: If the water vapor content stays the same and the temperature drops, the relative humidity increases. If the water vapor content stays the same and the temperature rises, the relative humidity decreases. This is because colder air doesn't require as much moisture to become saturated as warmer air.