An experiment trying to decide what kind of soil do plants like more
The verb ending is the only thing that changes in present tense form, depending on who does the action. In this case, it is talking about "you" or "tu" meaning that it will end in "-es", or "haces". Therefore the answer would be:
<em>Que haces tu?</em>
Balearic sea which is also a part of the Mediterranean Sea. Hope this helped.