PLSSS HELP (CHECK MY PF FOR LAST PART 1 & PART 2)

In which research method does a researcher change the value of one variable to determine how the change affects another variable? a. experiment b. observational research c. survey d. case study

How do quotas domestic producers? quotas facilitate increased exports of domestic goods. quotas lower the cost of domestic goods. quotas limit the number of producers that compete in a sector. quotas facilitate the sale of more domestic goods.

What would be the most relevant question to ask to find out why tutankhamen died? what was tutankhamen’s age when he died? was a doctor with tutankhamen at his death? why was tutankhamen mummified after his death? did tutankhamen’s body have evidence of disease?