Defects in the Mendeleev periodic table

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon

Wind and moving water provide energy. chemical mechanical thermal none of the above