Answer:
One of the most popular reasons given for the Sepoy Rebellion was the issue of the rifles they were given when enrolled in the British Army.
Rumours arose that the cartridge Sepoys had to bite off to use the rifle were either made from beef or pork fat, both of which were offensive to Hindus and Muslims respectively.
Explanation:
However, the underlying conditions for the uprising had been years in the marking. Known as the first war of Independence in India today, it originated with a deep resentment among many local people.
Many locals did not appreciate the changes being made by the British government. Their laws, taxation, language and even fashion was seen alien and against the traditions and norms of the subcontinent.
Poverty and illiteracy had also become a major problem in rural India and most blamed British policies.
Many banks had to shut down, textile mills closed, and many families lost their farms
At the Elbe River, April 25th, 1945.
Answer: Tanks and military-grade planes
Explanation: Imperialism was about almost everywhere in Europe at the time and around that time most European countries had territories in Africa which lead to constant fighting for the land there. What this lead to was intense fights between nations by them creating proxy wars (militias/Rebel groups) to fight against each other which were being supplied by that country that wants more land for them self. With that it lead to Archduke assassination which lead countries to declare wars on one country which then would mean they would declare war on multiple countries in realty because countries would ally each other and the domino effect went down hill from that. So Archduke assassination was just really a "reason" to fight with another nation for more land (resources).