Why did farming tribes plant their crops on hillsides?

Why was russia drawn into a conflict with germany after ausria-hungary declared war on serbia ?

What was a major cause of world war i?

Do all accounts serve the same function? why or why not? yes, all accounts people increase their money no, some accounts are for saving and others are for investing yes, all accounts are designed to ensure a retum on investment no accounts serve the purpose that their owners choose