The thermocline is the name for the layer of the ocean where the temperature drops with depth faster than in other layers, True.
Answer:
emigration or increase in death rate
Explanation:
emigration is leaving ones place of living, which would explain why the population is going down, and an increased death rate means more individuals are dying than the birth rate can keep up with, so the population would be going down as well. so, the answer is number one.
Answer: It stopped the Japanese from invading Port Moresby and threatening Australia.
Explanation:
True because the population is increasing and so is the factories' business.
Hope this helps!! :D