Water molecules are polar because
a) water molecule has a linear shape
b) water molecule has a bent shape
c) oxygen atom has fewer electrons around it
d) hydrogen atom forms an ionic bond with oxygen

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.