Jon studies the number of deaths caused by a particular disease in a county for six months before releasing a new medicine and six months after releasing the medicine. During the same period, he measures the number of deaths caused by the disease in three other counties where this medicine was not introduced. This research design is an example of a(n)

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!

i am a priest who cares deeply about the church. i have been called here to explain my views on indulgences and other proposed reforms. i would like to explain why my views are consistent with the bible and are correct.

there are indirect ways of affecting state laws   by with holding funding's. and that's why we have a 55mph speed on the high way with a design of 70mph speed.