Stomata allows gas exchange throughout the leaf so your answer is carbon dioxide
: D
NADH and FADH2 are used in the next step of the aerobic respiration(electron transport chain) for their electrons, the energy they store in the electrons to be precise
Breaking bonds takes energy, forming bonds releases energy
If you break more bonds than you form it would be an endothermic reaction
A. Abrasion
Reason - cause by scraps on rough surface which breaks skin on outer layer.
