2)
substance specific heat (j kg-1 k-1)
aluminum 900
copper 390
brass 380
silver 230
platinum 130

how many joules of heat would be required to heat 0.5 kg of aluminum by 2k?
a) 300 j
b) 450 j
c) 900 j
d) 1800 j

Aprimary producer stores 9,000 kcal. in the energy pyramid, if a primary producer is consumed by a first-level consumer, and that first-level consumer is consumed by a second-level consumer and the second-level consumer is consumed by a third-level consumer, how much energy is stored by the third-level consumer from the primary producer? *