Question

An ecosystem receives 10^7J of solar energy, then
what is the energy available at primary consumer
level?
(1) 100J
(2) 1000J
(3) 10000J
(4) 100000J​

Answer 1

Answer:

1 is the correct answer

Answer 2

Answer:

10×10⁷J←energy from sunlight

1% of (10×10⁷)←energy taken up by plants(producer)=10×10⁵J

Now, 10% of (10×10⁵)J←energy taken up by primary consumer=10×10⁴

(4th option)1,00,000J