You want to find out about traditional fertilizers used for growing corn before modern agricultural technology was developed. since this is a complex topic, you want to break it down into its main concepts to identify keywords that could you search. are the keywords below examples of the essential concepts from this topic?

What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls