Pressure would be my best guess, since no choices were given.
Answer: I got you
Explanation: On islands around the globe, invasive European rabbits wreak such havoc on plants and seabirds that governments worldwide have spent a century trying to eradicate the furry beasts. Scientist Scott Pearson had come to this steep uninhabited pile of rocks to catalog the decline of the rhinoceros auklet, a gray seabird that nests deep in hollowed-out hillside burrows. But instead of spying one of the white-eyebrowed creatures, Hodum came eye to eye with the most likely cause of its decline. Rabbits inside the borrow.
Answer:
nitrogen can be changed into macromolecules like proteins and nucleic acids (DNA and RNA)
Explanation:
The population will be less as some will die or there are chances of equal also if no one died... Most chances are of 1st one. But it also must be the same or less. Depending on if population growth means just how much it got bigger of if it can be negative (like -8% means it got smaller by 8% and being considered "growth").
Hope this helps!
A scale is used to measure mass in grams. ☺♥