They became stronger and more fortified with the use of tools. They could now chisel stone and construct shelters from stone.
Answer:
Correct Answer: <em><u>The sample size is not representative of the population </u></em>
Explanation:
Bias in a scientific study can be said to occur when there is a prejudice for or against one person or group, especially in a way considered to be unfair.
For example, in a society that tries to promote the relationship between Christians and Muslims in a work place. <em>In a study carried out to determine how this relationship could be achieved by a researcher, if he or she happens to have prejudice against one of the group, it would definitely affects his research outputs and results.</em>
Answer: The Cascade Range
The estimated cot to America for traffic crashes caused by underage drinkers is more than 10 billion dollars per year.
This cost came from various public property that has to be repaired and the hospitalization by the accident caused by the underage drinkers.