In which type of research is one or more variable deliberately changes?

A) a study case
B) a survey
C) a observation
D) an experiment

Graphs you see question 5 options: the change in data over time the relationship between different dependent variables the relationship between the independent variable and the dependent variable/s the relationship between different independent variables

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Si el equipo no fuera bueno no con el entrenador.