Answer:
(a) 50 dB
Explanation:
It is given that someone gives training to dog that it will run for food when h whistles a 60 dB whistles and it is also given that dog will not come when he whistles a 70 dB we have to tell that when there is peak shift effect then whistle would lead to the dog fastest running.The dog will run fast for food when there is a whistle of 50 dB when thee is a peak shift effect.
so option (A) will be the correct option
14. Many researchers believe that IQ has a reaction range, which refers to the limits imposed on IQ by heredity. The IQ that a person can achieve is limited by hereditary factors, which set an upper and lower limit. The environment determines where a person's IQ falls within these
ranges.
15. Fluid and crystallized intelligence change over time, with different mental abilities peaking at different times. Fluid intelligence has long been thought to peak in childhood, but new research published in 2015 suggests that some aspects of fluid intelligence may peak as late as age 40.
<span>The statement that provides the best evidence to support the conclusion that the production of cotton was the most important economic activity in Georgia during the antebellum period is:
</span><span>C) In 1860, over 87,000 Georgians were working in agriculture, which was almost 40,000 more than all other occupations combined.
</span>
Antebellum is Latin, and it virtually suggests that ''before the war.'' within the context of U.S. history, the term refers to the amount before the American war.
Georgia developed Associate in Nursing agriculture-based economy even before the American Revolution<span> and before it achieved statehood.
However, shortly </span>once Yankee gained its independence, things very took off. In 1793, Savannah resident Eli Whitney developed a tool known as the machine<span>.
The </span>machine was a machine wont to separate cotton seeds from cotton fiber. Choosing out the cotton seed by hand was terribly time-consuming; it would take all day to provide only 1 pound of seeded cotton fiber. With this revolutionary new machine, a team of 2-3 folks may turn out up to fifty pounds of cotton daily.
