Crest (equipment) – Heraldic markings on an arrow used for identification or design
c) ask for help
They should realize they will need to ask for help
Oxygen in the air can cause sliced fruit to brown, a process called enzymic browning (an oxidation reaction). Phenols and the enzyme phenolase are found in the cells of the apple, and when these are exposed to oxygen in the air, for example through slicing, the oxygen causes a reaction.
