I need help with how to solve it. And explain little bit.

Answeraquifer;

There are many ways in which technology has made an impact to our environment. one,  is to make a transgenic plant to protect it from  insect damage. transgenic plant are called genetically modified organisms (gmo) because there is a gene added or removed in the original plant to obtain a set of characteristic such as insect damage.

The salinity of ocean water increases with depth as the lower we go there will be more salt which has settled down, as the ocean depth increases the pressure also increases as more water is pushing down on you.