Sound waves with a large distance between a and b would be sound waves that have a large and produce loud sounds.
a) amplitude
b) frequency
c) pitch
d) resonance

a. amplitude

Explanation:

A large C would indicate a large amplitude and a loud sound. When the amplitude increases in a compression wave, there is an increase in the density of the medium, and in the pressure exerted by the particles.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.