How has human activity changed the planet?

a lot of things

Explanation:

you see, we have polluted the planet, and if we keep on doing it, then the planet will die

Explanation:

human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environmsnts and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans including global warming, environmental degradation (such as ocean acidification) etc

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