I think the best one is the 3srd one.
I think it’s the first one. One impacts how well you do on the other.
The organizational pattern that is reflected in this passage would be "<span>cause/effect" since the cause is humans in this environment, and the effect is that the tutrle population suffers. </span>
The verbal in this sentence can´t be a gerund because all gerund verbs finish in "ing". Example: "<u><em>smoking </em></u><u>is a health hazzard</u>"
The verbal in this sentence can´t be participle because participle verbs are used to describe tenses like present perfect and passive voice. Example: "<u>We </u><em><u>have swum</u></em><u> in the deepest oceans"</u>
Since none of the above are written in the text, you can say that the correct answer is an infinitive verbal tense becase we must use infinitives when two verbs are said or written in a row. Example:
"<u>They want </u><u><em>to speak</em></u><u> with me".</u>
"He lieth in wait to catch the poor..." This line contains an infinitive form of the verb.