Which of the following does not affect pollution levels in the great barrier reef ? tourism offshore drilling land-based industries overfishing

The correct answer is option B that is, offshore drilling.  

Offshore drilling refers to a mechanical procedure where a wellbore is drilled underneath the seabed. It is usually conducted in order to explore for and subsequently extract petroleum that lies in the formations of rock underneath the seabed.  

Most usually the term is applied to illustrate drilling activities on the continental shelf, though the term can also be used to drilling in inshore waters, lakes, and inland seas.  

c. movement because i took the test and it lets me review my answers

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )