25 POINTS HELP ... Select the correct answer from each drop-down menu. Complete the sentences to explain how photosynthetic organisms changed our lives on Earth.
The 1(carbon dioxide) 2(oxygen) 3(water vapor) 4(nitrogen) in the atmosphere that all living beings depend on was generated by cyanobacteria during the Archaean and Proterozoic eras. The presence of this substance is what makes 1(the water cycle) 2(visability) 3(photosynthesis) 4(combustion) possible on Earth.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.