How to calculate price elasticity of supply using midpoint method

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

(04.05 hc) analyze the given diagram of the carbon cycle below. part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.

Can someone me with these problems? see the attachment, .