
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
Suppose one third of the Earth's surface is not covered by bodies of water, and only two fifths of that exposed land area is inhabitable for humans. Furthermore, of this inhabitable land, only three quarters are actually utilized by humans due to urbanization and other human activities. What fraction of the Earth's surface is utilized by humans?

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