Handle, address, and tackle are all verbs that have similar meanings but with some subtle differences.
Handle means to deal with or manage a situation, object, or task. For example, "She handled the difficult customer with patience."
Address often implies focusing on and trying to solve a particular problem or issue. For instance, "The government is addressing the issue of climate change."
Tackle suggests taking on a challenging or difficult task or problem with determination and direct effort. An example would be, "He tackled the math problem head-on."
In summary, while they are similar, the choice of which word to use depends on the context and the specific nature of the situation being described.