Final answer:
Air parcel one, being warmer than the surrounding air, can hold more water vapor and will likely result in more rainfall due to its initial higher temperature and the physics of condensation when it cools.
Step-by-step explanation:
When considering which air parcel will result in more rainfall, it is essential to comprehend the relationship between air temperature and moisture capacity. Warm air can hold more moisture than cold air because increased heat provides more energy, causing water molecules to be held more easily in a gaseous state. Therefore, air parcel one, which is warmer than the surrounding air, has the potential to hold more water vapor.
Since both air parcels started with the same amount of water vapor, and air parcel one is warmer, this air parcel will be less saturated than parcel two which is at the same temperature as the surrounding air. As air parcel one rises and subsequently cools, its ability to hold water vapor decreases, causing more water to condense and precipitate out as rainfall, assuming both parcels undergo the same cooling. Thus, air parcel one will likely result in more rainfall due to its initial higher temperature and the physics of condensation.