Answer:
all are unacceptable besides 4. 4 is acceptable
Explanation:
this is honestly just my opinion from a high-school point of view
In a study, the measurable conditions, events, characteristics, or behaviors that can be controlled or observed are called: variables.
<h3>What is a study?</h3>
A study can be defined as a process or technique through which a scientist (researcher) observes and measures the effect of a risk factors, diagnostic test, or treatments on a population.
<h3>What is a variable?</h3>
In Science, a variable can be defined as the measurable conditions, events, characteristics, or behaviors that a scientist (researcher) can control or observe when performing a study.
In conclusion, the measurable conditions, events, characteristics, or behaviors of a living or non-living thing that can be controlled or observed in a study are typically called variables.
Read more on variables here: brainly.com/question/523303
Answer:
Stratification
Explanation:
Stratification may be defined as the social differences between the hierarchical groups in the society based on the power of their control over the basic goods or resources available.
It is a system where people are ranked based on their wealth, power or prestige.
Life chances are the extend to which people have access to the basic resource in their life and its access to success.
Answer:
Durante la Revolución socialista Cuba buscó el apoyo de la Unión Soviética, luego del bloqueo económico y comercial decretado por el presidente John F. Kennedy de los Estados Unidos.
Explanation:
Cuando la revolución cubana derrotó a Fulgencio Batista, el poder fue asumido por Fidel Castro y las relaciones entre Cuba y Estados Unidos se deterioraron cuando la Ley de Reforma Agrícola dio paso a las expropiaciones de propiedades agrícolas porque muchas de estas eran de empresas de Estados Unidos. Debido a esto, el 7 de febrero de 1962, el presidente de este país, John F. Kennedy, impuso un embargo comercial, económico y financiero a Cuba y este último buscó el apoyo de la Unión Soviética. De acuerdo a esto, la respuesta es que Durante la Revolución socialista Cuba buscó el apoyo de la Unión Soviética, luego del bloqueo económico y comercial decretado por el presidente John F. Kennedy de los Estados Unidos.