Either
"Success will become ever more elusive"
or
"The elusive thought he had had moments before"
Positive effect is the usage of more land whereas negative effects is the control problem of that land.
<h3>Effects of settling the west</h3>
The positive effect of settling the west is that it provides America more land to use and its resources for the betterment of the economy while on the other hand, the negative effect of setting the west is that it was more land to control for the United States as well as the United States had to fight 2 wars to gain the territory.
<h3>Effects of railroads on the physical environment</h3>
The main disturbances caused by railways are air, soil and water pollution and noise which adversely affect species and organisms present in that environment.
Learn more about railroads here: brainly.com/question/2724028
Answer: True
Explanation: Because it is through conservation that the homeostasis of the environment is brought back allowing the species to live naturally on their habitats.
What were the three classes of French society? The three classes of the French society are divided in three estates. The first estate consisted of the Roman catholic clergy. The second estate was nobles and the third estate bourgeoisie merchants and skilled workers city workers, and peasants
<span>Indeed so: it ranges from the arctic in the far north, to near-tropical swamp lands towards the south. In other parts, rainfall is sufficiently low as for the region be classed as a desert.
These factors, and topography cause the temperature to range to the extremes, and for the wind regimes to similarly range widely.</span>