
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Academician Yuan Longping is known as the "Father of Hybrid Rice". After years of hard work by the team led by him, the current planting area of hybrid rice in China is approximately $250$ million mu. Express $250000000$ in scientific notation as $2.5\times 10^{n}$, then $n=$____.

Present the answer in LaTex format: \boxed{Your answer}
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