This effect is called proactive interference.
Proactive interference (PI) is a type of explanation for why we forget or cannot recall information. The PI effect means that forgetting occurs because old memories interfere with our ability to form memories. An example of the PI effect is when you try to learn or memorize a new phone number, however, phone numbers that already exist in your memory interfere with your learning of the new phone number.
Answer:
Well first we are not allowed to give the answer and second just re read it inorder to find key words to help you with the problem
Explanation:
President Obama in Cuba of March 2016 ended America's 55 year long Cold War with Cuba.
President Obama in Iran had negotiated terms that paused Iran's quest to develop nuclear strike capability although many critics disagreed with negotiating with Iran.
They are called contour lines
