Option 1 seems to be correct
A. Carbon
It's carbon because it is in all plants and fossil fuels. Hope this helps and is correct.
High pitch sounds make it close to oval window. low pitch further up basilar membrane near apex of cochlea<span>.</span>
The answer is C. When a vacuole is filled with water, turgor pressure exist, it can keep the cells turgid and therfore to make the plant stay upright and prevent it from wilting.
