The answer is "Experimental research".
Experimental research refers to any research led with a scientific approach, where an arrangement of variables are kept steady while the other arrangement of factors are being estimated as the subject of test.
The most straightforward case of an experimental research is leading a laboratory test. For whatever length of time that examination is being directed under logically satisfactory conditions – it qualifies as a trial explore. A genuine experimental research is thought to be fruitful just when the scientist affirms that an adjustment in the dependent variable is exclusively because of the control of the independent variable.
Answer: holi
Ventajas
1) conoces personas de otros países.
2) haces nuevas amistades.
3) puedes comunicarte con tu familia que está lejos de donde estas.
4) puedes enterarte cualquier noticia.
5) te ayuda con tus dudas que tengas.
Desventajas
1) no sabes si esas personas quieren hacerte daño
2) te hacen preguntas que no deben hacer por ejemplo número celular ,la dirección a donde vives.
3) te pueden acosas por mediante el chat.
4) la mala señal
5) no te da toda la información que deceas saber.
Explanation:
ESPERO AVERTE AYUDADO DE MUCHO QUE TENGAS UNA LINDA NOCHE .
Discrimination is the act of making unjustified distinctions between human beings based on the groups, classes, or other categories to which they are perceived to belong.
A small group that rules a country after talking it over by force is called Oligarchy.