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Phytoplankton in a lake produce $2 \times { 10 }^{ 6 }$ Joules of energy in the first trophic level.

How many Joules are lost from the first to the third trophic level?

$1.98 \times { 10 }^{ 6 }$Joules

$1.98 \times { 10 }^{ 4 }$Joules

$2 \times { 10 }^{ 4 }$Joules

$2 \times { 10 }^{ 5 }$Joules

$2 \times { 10 }^{ 6 }$Joules