Which of the following correctly associates the model with the historical model of the solar system? A- Model 1 = heliocentric; Model 2 = geocentric
B- Model 1 = heliocentric, Model 3 = geocentric
C-Model 1 = geocentric, Model 3 = heliocentric
D- Model 2 = heliocentric, Model 3 = geocentric

Alkaline earth metals are found in group 2 of the periodic table.

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to move. 

Iassume the answer is 75 feet. inwards to outwards rather than outwards to inwards. probably be 75.hachures are stokes drawn in direction of the steepest slope. a series of short parallel lines drawn on a map to indicate topographic relief. it is actually called hachures on contour lines. the small marks in the center of the feature are called hachures.observe the picture attached