The correct answer would be the second option. The correct plan for his experiment would be that the temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables. To determine the degree of damage of the acid it would be best that the amount of acid is the manipulated variable while everything else are assumed constant.
The rising protests of different labour unions across many states at the United States was considered to be one of the consequences of the industrialisation. In addition, the reforms that these labour unions want to ask are retirement benefits, decent working hours, and sufficient wages.
Lev Vygotsky's theory regarding private speech or a child's tendency to talk to themselves during play is most accepted in the research community today. His theory of private speech has been considered as significant to a lot of recent developmental phycologists. <span>Evidence has </span>also <span>supported Vygotsky's theory that private speech provides many </span>advantages in the development of children.
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Just like think of what they have in common and what they don't have in common
Answer:
Only white men who lived in one of the largest cities could vote in all 13 states.
Explanation: