The difference was that serfs were required to work for their lord and give him food for exchange of protection when war times appeared. Peasants, on the other hand, had no obligation to do so, they were just people who were agricultural workers and were growing crops.
These changes reflect the fact that the parents of these two children are divorced and are undergoing adjustments on the custody of their children. This is often the most complicated part of filing for a divorce, because children are uprooted from their family backgrounds and are forced to live in a different situation from which they were accustomed to.
Biodiesel fuel can be made from new and used vegetable oils, such as palm oil. So, the answer is B.
Your reading above gets my article completely backwards. The research shows that women who work outside the home have LOWER rates of depression than those who do not, even when we control for other factors, like pre-existing health problems that might make some women less likely to work. Someone needs a better fact checker or copy-editor!
