Yes. there were more events leading up to the crash
Diseases. To list some would be influenza, smallpox, etc.
Not really,
It is reliant on the intensity of the attack as well as the power of the attacking nation.
some countries have been attacked and literally never fought back but surrendered if the attacking nation is more powerful in terms of military power.
in case the intensity of the attack can be absorbed, a country can also opt for diplomacy as war is the ultimate sanction in international relation.
in case the country feels it has the capacity to protect its sovereignty then fighting back is the only option.
The correct answer is a) caste.
In India, the division of kin groups in Jatis is not based on a specific principle, varying from ethnic origins to geographical occupation, exhibiting some variance. While the Jatis have not presented a fixed hierarchy, they present notions of a rank achieved over time considering lifestyle and social, political or economic status and considering the fact that the caste has a direct impact in these factors, we understand why it is the more relevant idea.
If you looked at google, it would day Francisco was a Spanish conquistador and explorer who led a large expedition from mexico to present day kanas through parts of the southwestern united states between 1540 and 1542