Which compound was abundant in precambrian earth’s oceans, before complex life evolved on earth? a. dissolved oxygen b. dissolved carbon dioxide c. dissolved methane d. dissolved ammonia

In general, are there any major differences that you can see? explain

First idea: suddenly, women were leaving their homes to cycle and socialize on country roads and city streets. —wheels of change, sue macy second idea: it was not a stretch for some cyclists to see the possibility of a larger role for women in the world. —wheels of change, sue macy what type of graphic organizer would best represent the connection between these two ideas? 1) a t-chart that separates ideas into two different categories 2) a chronology that shows 3) a sequence of several events a cause-and-effect graphic that shows how one idea led to another 4)a problem-solution graphic that presents a problem and a solution to the problem

Sharks depend on production for survival