Final answer:
Cranes are used to lift and place materials, persons, and tools.
Step-by-step explanation:
Cranes are used to lift and place materials, persons, and tools.
Materials such as construction supplies and equipment can be lifted and moved to different locations using cranes.
Cranes are also used to lift and lower persons, such as construction workers, when working at heights.
Additionally, cranes can be equipped with tools and attachments, such as buckets or hooks, to carry out specific tasks.