Nationalism is the term that describes a strong sense of attachment to one's homeland. It could also be patriotism. They both have same meaning.
The period of religious revival is called the Great Awakening, or more specifically, the First Great Awakening, as there were four other similar periods in the history, the latest finishing in the begining of this century.
The Germans helped Lenin return to Russia because they knew that his return would cause unrest and would hurt the war effort on their homefront.
The correct list of kingdoms of life scientists currently use D. Kingdom, phylum, class, order, family, genus, species. I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarification. Have a nice day.