Which is a chemical reaction
ice melting
salt dissolving
water vaportizing
wood burning

Hell No it's Wood Burning

When wood burns, oxygen reacts with the carbon in the wood and produces ash, smoke and energy in the form of light and heat

Burning wood, would be a non reversible reaction so it's a chemical change.

Don't argue little girl (or guy who knows)

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg