The diagram below shows different layers of sedimentary rocks.

picture showing seven layers of rocks of different colors labeled a, b, c, d, e, f, and g from top to bottom; a and b are parallel horizontal layers at the top of the diagram and c, d, e, f, and g are slanted layers with c closest to the surface and g at the bottom.

based on the diagram, which of these inferences is most likely correct?

a. layer a is older than layer b.
b. layer c is older than layer e.
c. layer f is younger than layer d.
d. layer b is younger than layer g.

How does a noncompetitive inhibitor reduce an enzyme’s activity?

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table?

Most ionic compouds are crystalline solids at room temperature. true falseionic compounds are electrically neutral. true falseionic compounds generally have low melting points. true falsewhen melted, ionic compounds do not conduct electricity. true falsethe electrostatic attraction between an anion and a cation is an ionic bond. true false