Night time because she may be having trouble sleeping<span />
The Himalayas separate India from
the rest of Asia to the east and west. But, you can still go through by
foot because of the passes which is good to visitors, but bad for
invasions. It is also heavily influenced by the Indus and Ganges rivers.
If the monsoons bring too little water for the crops, the crops suffer;
too much rain and deadly floods occur.
~Quizlet.
This historian would be using "research skills" at this stage of the process, since he or she has yet to determine all the facts, and therefore is unable to yet form a thesis.