Imagery I think is the answer
Answer: Marine Biologist
Explanation: Marine biology is very important for our well being. Ocean supports the basic need of human beings in several ways. Using advanced technologies, marine biology helps us to improve our food deriving ability, water disposal, energy sources, and transportation using oceans. I want to contribute towards the salvation of our planet before we decide to immigrate to another only to destroy that one too.
Gerunds in a sentence functions as a noun. Hence in a sentence, a gerund will act as direct objects, subjects, subject complements, an object of prepositions or indirect objects. Every gerund ends in -ing, and so does present participles. On the other hand, present participles act as modifiers or complete progressive verbs.
On the other hand, infinitive verbs are formed by adding 'to' to the base form of the verb. for example, to eat, to sleep etc.
Therefore, on revising the sentence by replacing the infinitive 'to sail' with the gerund form of the verb will be written as,
The laughing boy in the boat likes sailing.
