Answer:
Writing began to disappear and the standardized weights and measures used for trade and taxation fell out of use. Scholars have put forth differing theories to explain the disappearance of the Harappans, including an Aryan Invasion and climate change marked by overwhelming monsoons.
Explanation:
It started to bring like an uprise in advance military and technology in countries. Which lead to see which country was like the most advanced or wtv
Answer: countries have different government systems for various reasons. The picture I have attached is how every different government systems and how they work. Some countries for example, Russia its Constitution states that it is a democratic, federative,law based with a republican based government. Russia's government makes decisions for people such as when you go to work, when you go home, how much you get paid, and how much taxes you pay. Hope it helps if not please just ask me what u don't understand