Respuesta :

HomertheGenius
The total plant biomass ( 1,600 kg ) represents 100 % and 320 kg represents x %. Then:
1,600 : 320 = 100 : x
or:  1600/320 = 100/x
When we cross multiply:  1,600 x = 32,000
x = 32,000 : 1,600
x = 20 %
Answer: c ) consumption, 20 %.