Answer:
The correct answer is: The participants' abilities to solve geometry problems.
Explanation:
Researches contain both dependent and independent variables.
In a research the dependent variable is the variable that the researcher wants to identify if it changes by modifying the independent variables.
Independent variables are multiple factors that if modified they may or may not change the dependent variable.
In this particular case, Dr Martinez wants to prove the effects of diet on mental alertness. He proceeds to instruct the participants to eat breakfast that's either high in carbohydrates or high in protein (Independent variables) and then Dr. Martinez then measures the participants abilities to solve geometry problems (Dependent variable).
In conclusion, the dependent variable in this study is: Participants' abilities to solve geometry problems.
It is true becouse international is between two or more countries.
None, drive vehicles that carry 14 passengers or less or people who transport goods at work
ANSWER: (c) CONSERVATION OF NUMBER
EXPLANATION: Psychologically, Conservation refers to the ability of an individual to understand that despite the change in the appearance of an entity, the quantity remain the same.
According to Piaget's theory of cognitive development, children develops the abilities of conservation (in terms of number, area, volume, and orientation), and this stage occurs between age seven to eleven.
Thus, the experimenter is testing conservation of number, which is characterised by the ability to understand that when redistributing two entities (two identical rows), its number is still the same and not affected.
