It is in an incorrect spot i think
Here's how you would solve it. The process should be the same for the others.
POPULATION SIZE DECREASE
Population size can increase, but it can also decrease.
We know that amount of resources available affects the population size.
Natural disasters such as floods,fires,volcanic eruptions, can also affect the population size.
Sometimes the population size will decrease so much that it threatens the entire species.
1.2*104 is 12000 it is easy just try ur best