Answer:
dependent: exam score, independent: presence of music,
confounding can be the fact that students in no music condition completed exam as they normally would
high validity
Explanation:
Dependent variable is the variable whose value depends on independent varaible. As independent variable is changed, the value of dependent variable changes
Students in no music condition completed exam as they normally would can be confounding as no description is given about how they would noramlly complete an exam. Any other factor and not no music condition, in normal exam condition could have affected their scores.
The experiment has high validity as the exam scores of student exposed to music was significantly higher than those not exposed to the music. The results also proved the hypothesis.
Answer:Victoria, one of the original five ships, circumnavigated the globe, finishing three years after setting out. In 1519, Portuguese explorer Ferdinand Magellan led a Spanish expedition with a fleet known ... The fleet initially consisted of about 270 men and five ships: four carracks and one caravel. The expedition faced numerous ..
Explanation:One of Ferdinand Magellan's five ships—the Victoria—arrives at Sanlúcar de ... 1519, Magellan set sail from Spain in an effort to find a western sea route to the rich ... where he searched the South American coast for a strait that would take him to ... they dropped anchor at the Philippine island of Cebu–they were only about .
The correct answer is letter D
Adrenaline is a hormone produced by the adrenal glands and prepares the body to perform physical activities and physical efforts. Adrenaline, or epinephrine, is a hormone and also a neurotransmitter, as it acts on the sympathetic nervous system.
<h3><u>Poor performance of Spain after the Commercial Revolution:</u></h3>
There were several reasons sue to which Spain has become poor soon after starting the Commercial Revolution,
- After starting the Commercial Revolution, Spain has got severe economic problems.
- The war has affected almost all the economic structure of the country.
- All the foreign exchange market has ended.
- The war has badly affected the industrial and agricultural sectors of Spain which has resulted in inflation.
- The raw materials have been completely reduced during the war which has made Spain a poor country at that time.
That would be a hydrocarbon society, I believe.