the interaction of the Earth's oceans

[manhhiep2509]

Hello. Please take a look the below sentences and help me solve my problem.

The project is a part of the 15-year effort to examine the interaction of the Earth's oceans.

The project is part of the 15-year effort to examine the interaction of the Earth's oceans.

Is "a part" or "part" is correct? and why?

Thank you.

[RonPurewal]

Hi,

A quick search of the forum gave me these:

post7327.html

the-computer-company-has-announced-that-it-will-purchase-the-t2673.html

When you post questions inspired by a specific problem, ALWAYS post the problem that inspired the question (or, if it's an OG problem, mention the edition and problem number). Thanks.