LOOK AT CHART THEN 2nd and 3rd question. I answered the 1st question already. HELP

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

Which best describes carbon dioxide’s path out of the body

What are the three different shapes, or structures, of carbon-based molecules