What was the effect of Spain increasing its control over its colonies? A. Representatives from the colonies sailed back to Spain to ask for more freedom.
B. A revolution began, starting with Father Hidalgo.
C. Seeing the instability, the French invaded Spanish Texas.
D. The Spanish decided that the colonies were too much trouble and left.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

aliens are not real, the myth was created about 700 years ago because people found markings in the field of their crops. also, no there were no aliens on the moon.

hope this ! give brainliest!

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