D.
This is self-regulation because when the population of the insects becomes too large, it regulates itself and starts to decrease due to a shortage of resources.
Hello! Let me try to answer this :)
Thanks and please correct if there are any mistakes ^ ^
Explanation:
firstly find for the molar mass of kcl and molar mass of k
and then
molar mass of k = x
molar mass of kcl= 40
cross mutiply and then simplify you will get your answer
The first whistle is louder while the second whistle has a higher pitch
Loud vs high
