Explain how the grass you see in the first trophic level produces the energy it needs to survive. ( please help if you can ) 3 sentences or 2 max!

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

i think tornado but not 100%