<span>the answer is farms with distant markets for selling their harvest.
Because of this, it is impossible to distribute agricultural product to a far away area because the product will get rotten in the middle of the distribution.
The development of railroads answered this very problem which allow the agricultural sector to flourish.</span>
The threat to validity that is likely to occur in the scenario above is Selection Bias.
<h3>What is Selection Bias?</h3>
This occurs when a researcher has control and intentionally chooses those who are going to be researched, observed, or studied. To eliminate this bias, the scientist must ensure that the sample population is selected very randomly.
Other threats to validity are:
- History
- Maturation
- Attrition
- Social Interaction
- Instrumentation
- Testing
- Regression to the mean, etc.
Please see the link below for more about Threat to Validity:
brainly.com/question/4168290
Old musket are heavier and their bullets where a bit slower and less powerfull.
B.F. Skinner would have attributed Alan’s rapid speech
development mainly because of the amount of his parents is talking to him in
which this led to the reason why Alan has developed a vocabulary of a dozen of
words by the 10 months of age.
The 13th Amendment abolished slavery in 1865. To protect the rights of newly freed people, Congress enacted two additional Constitutional amendments
