Going over the test

Today in class we went over the test that we took I think that it was last Thursday. I got an eighty one percent which I think is pretty good because I was confused with this unit so I was very relieved that I passed. I got all of the answers right for the ones that you got to go on your computer and use the website cia.gov.  I got most of the definitions right except for Crude Birth Rate and Maternal Mortality Rate, I got the one about rising or falling wrong, the one about Net Migration Rate, life expectancy, Total Fertility rate, one of the push forces wrong, but I got all if the Population pyramids right, and I got both of the bonus questions wrong. But I now know what I did wrong and I understand it.