<span>The correct answer is weakened economic strength. When a declning population size starts to occur and develop, the country may experience a weakened economic strength, since the power to produce and create products and services has been hindered and weakened due to its declining population.</span>
There are two ways to liquefy a gas:
-- Increase the pressure on it.
-- Lower its temperature.
The liquefication is faster and easier if you do both.
And this is y I should of paid attention in that one science class in middle school that taught this...
( ̄▽ ̄;)
Answer:
commensalism, mutualism, parasitism