Tenochtitlan was an ancient city in Mexico.
That's a physical change. There are no chemicals reacting with each other, it's the simple presence of concentration of food colouring and oil in water that changes its appearance.
Answer:
1. proactive; retroactive interference
Explanation:
The interference of memory occurs when it combines or distort with another memory/info (whether old or new) making one forget information because of this confusion.
Proactive interference is when old memories muddle with the new one making remembering difficult. As for the Retroactive interference it's the opposite; occurs when we forget an old task/memory due to learning a new one.
Answer: The first civilization that created the concept of zero were the Babylonians but the Babylonians were influenced by Sumerians, the ones who created the first counting system. If anything Americans got a hold of what the counting system was like (the one that contained zero in it) and claimed it as theirs.
Explanation:
The answer is C, investigators learned that senator Joseph McCarthy was a communist spy.
