What is it about a cooling lava that allows geologists to determine the location of past magnetic poles? What will be an ideal response?
Iron-bearing minerals in a cooling lava align themselves in the direction of the current magnetic field
as they cool below the Curie Point.
You might also like to view...
The frequency of an electric razor in Europe that completes 50 vibrations in 1 s has a frequency of
A. 50 Hz with a period of 1/50 s. B. 50 Hz with a period of 50 s. C. 1/50 Hz with a period of 50 s. D. 1/50 Hz with a period of 1/50 s.
Thick salt deposits have been explained by evaporation in silled (also called “barred”) basins. Indicate whether the statement is true or false
Using the 20 standard amino acids how many dipeptides containing two different amino acids can be made?
A) 20 B) 39 C) 40 D) 380
A small size is advantageous for marine organisms because it ________
A) increases the ability to absorb nutrients B) increases the ability of wastes to diffuse out of the organism C) increases the surface area to volume ratio that in turn reduces frictional resistance to sinking D) increases thethe ability to absorb nutrients,the ability of wastes to diffuse out of the organism, and also increases the surface area to volume ratio that in turn reduces frictional resistance to sinking