Final answer:
The cumulus stage of a thunderstorm has only updrafts, while the mature stage has a combination of updrafts and downdrafts. The dissipating stage is characterized by downdrafts.
Step-by-step explanation:
The stages of a thunderstorm are characterized by different atmospheric conditions. The cumulus stage is the initial stage of a thunderstorm, where warm air rises rapidly, forming fluffy cumulus clouds. This stage is dominated by updrafts, which carry moisture and heat upwards.
In the mature stage, the updrafts continue to strengthen, and the cloud grows taller and thicker. This stage is characterized by a combination of updrafts and downdrafts. Updrafts continue to bring warm air and moisture aloft, while downdrafts bring cool air and precipitation downwards.
The dissipating stage is the final stage of a thunderstorm. In this stage, the downdrafts become dominant, carrying cool air and precipitation towards the ground. The storm weakens, and the cloud dissipates.