Answer: Swim bladders of fish at depth help maintain buoyancy by regulating gas levels.
Evaporation exceeds precipitation
Secondary succession is usually faster than primary succession because soil and nutrients are already present due to 'normalization' by previous pioneer species, and because roots, seeds and other biotic organisms may still be present within the substrate.
It kept saying I’m incorrect I-
Q: On steep slopes and mountains,____ helps reduce erosion by creating level areas for crops.
A: terracing
