4. Which of the following is true about food webs?
A. Food webs are not as realistic as food chains because they show too many options.
B. Food webs are not as good as energy pyramids because you cannot see how multiple components can be affected by an ecological event.
C. The predator(s) in a food web may be in more than one food chain because it shows more feeding options for that predator.
D. Food webs are only useful in ecosystems with hundreds of plants and animals.

The correct answer is

C. The predator(s) in a food web may be in more than one food chain because it shows more feeding options for that predator.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

i believe it is c.) 1575 j.