The correct sequence of events is : C,D,B,A.
Iron rich magma in the earth's core heats up because of radiation and the pressure exerted by the other layers of the earth. This heat in the crust trigger convection currents in the mantle. The magma closest to the core will be hotter and therefore less dense than other layers. Being less dense the layer will rise towards the crust, eventually becoming cooler and sinking back down in a circular motion.
The continued circular motion creates electric currents which then generates the magnetic field.
Correlation is the measure of the similarity in the trend of two variables or between the pattern of functional change between any two variables. A high correlation indicates that one variable follows the same pattern as the other variable does. However through correlation, one cannot say that the two variables are functionally related to each other. Example, pattern of weather change and change in population of humans. These two are not related but similarities in their pattern of change will wrongly indicate that there's a relation between the two. Similarly between marital satisfaction and sexual frequency, a correlation may mean that one varies like the other. However, marital satisfaction is also strongly depending on economical situation of the subjects, behaviour, complex emotions, etc. And the order of these variables will influence the marital satisfaction. Her findings are not useful in establishing any relationship between the two.
What konnikova meant was that unclear headline can misdirect readers
D .Terrestrial biomes are distinguished primarily by their product
The cells in our bodies contain 23 pairs of chromosomes - giving us 46 chromosomes in total. Sperm cells and egg cells contain 23 single chromosomes, half the normal number, and are made by a special form of cell division called meiosis. ... Meiosis II divides each chromosome into two copies (much like mitosis).
