Question

Populations can change in size when new members join in the population or when members leave the population. what factors might have caused the increase of deaths in 1 year? what factors might increase the births in year 4? make sure to add such terms as limiting factors, birth rate, carrying capacity, immigration, and emigration.

Please help me
BillyBob
i just need the main idea to go off of and from that i can do the rest myself currently i don't understand how to approach the question
9+10=21
same XD it been a year and no one comes to help