This is semantic memory.
Semantic memory actually refers to your 'general knowledge' - the information that you know about the world in general. The grandfather's semantic memory is quite strong and it doesn't seem to decline, which is why he is still so good at solving crossword puzzles. This refers to knowledge and memory that we accumulate throughout our lives.
C.Sharecropping
Sharecropping is when African Americans and poor whites were hired to tend to someones crops. The sharecroppers owned some of of the supplies and got a portion of the crop.
The answer is: B. United Nations.
Convert to improper fraction (multiply whole number by denominator and add numerator, keep the denominator)
5 1/4 = 21/4
4 1/2 = 9/2
Multiply 9/2 by 2/2 to get the same denominator = 18/4
Subtract the numerators, keep the denominator.
21/4-18/4 = 3/4.
I think the correct answer would be A. I just found something in my textbook that says, "Around Israel" But sadly no specific location.