I believe the answer is: physical development
In longitudinal study same subjects over a certain period of time. From the study above, we can see that on-field-performance is the dependent variables. Since there is no way for the researchers to conduct and proof the psychological development, physical development ia the most suitable choice.
The answer is b] hydroelectric power
Answer:
Systems
Explanation:
In the experiment, a group of subjects are divided into two groups (the prisoners and the guards)\
Before the experiment, the two groups are completely at peace and friendly with one another.
But because the system in the experiment made the guards group have overwhelming power toward the prisoners, the prison groups start to abuse that power and treat the prisoners badly. This indicates that the system which granted their power could drastically alter their behavior in a very short period of time.
The Mundial Bank classifies a country as developed, developing and undeveloped according to the high, medium or low per capita income of its population.
Developed Country: It has a high develop level because it has a very good life quality in its population through high incomes, education, and sanity. Example: United States, Europe, Australia.
Developing Country: It has a medium develop level, it has scarcity in quality life because the incomes per capita aren’t enough and so there are low food levels. Example: Brazil, Russia, China.
Undeveloped Country: It doesn’t reach human developed either cultural nor economic. These countries are related to poverty and are called <em>“Third world countries”</em>. Example: Burundi or Sierra Leone
Answer:
Combustion engine
Explanation:
The combustion engine were some of the most significant and very far technologies of the Industrial Revolution. This was first presented in 1878 and was propelled by gas and air, making it unsuitable for large public use. During the Industrial Era, the combustion engine was perhaps the most efficient, both in the early years and even in the long run.
