Hello there.
<span>The building of the railroads impacted the economy and new business practices in the late 1800s, which of these is NOT one of those impacts?
</span><span>a. new industries emerged, such as lumber, coal, and steel
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Answer:
Bottle neck effect
Explanation:
Any disaster could lead to sudden decrease in population of an organism thereby decreasing its gene pool. Such disasters triggers genetic drift commonly termed as bottleneck effect.
Due to decrease in the population, the frequency of occurrence of any specific trait reduces as the frequency of alleles responsible for any certain trait also reduces.
Since habitat loss will cause reduction in both space and resources for giant pandas and hence a large number of pandas will die thereby reducing the gene pool and hence frequency of an allele.
Texas was able to become a leader in the aerospace industry because of NASAs headquarters which is located in Houston (aka my hometown :D )
Answer,
Economic stability
Explanation
Economic stability refers to abscence of excessive flactuationsin the macroeconomy.
planting of crops led to food security without food human life cannot be sustained hence other products cannot be produced.surplus production of crpos led to development of civilization which led to a stable economy because farmers could earn income from their products A stable economy later leads to political stabilty .
