Question

1. circle the correct answer. what happens to most of the energy as it moves up a food chain?

a) it stays the same
b) it increases
c) it is lost as heat
d) it turns into water

Explanation:

In a food chain, energy transfer between trophic levels is inefficient. Most energy (about 90%) is lost as heat due to metabolic processes like respiration in organisms. Option a is wrong as energy doesn't stay same, b is wrong as energy decreases up the chain, d is wrong as energy doesn't turn into water. So the correct answer is c.

Answer:

c) It is lost as heat