The energy available to secondary consumers in an energy pyramid is 500 kilocalories. Approximately how much energy is used by the secondary consumers for their physical functions? 50 kilocalories
500 kilocalories
400 kilocalories
450 kilocalories
please this is worth 50 points

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?

Write the balanced chemical reaction for the formation of fe2(so4)3 from fe2o3 and so3 and determine how many moles of fe2(so4)3 are formed when 12.7 mol of so3 are reacted.

Write an equation to show action of positive and negative catalyst