Answer: Irrigation and terraces are still used today.
Answer:
The Australoid Adivasis are among the oldest Indians of them all, they arrived in India in 60,000 BC. But they were preceded by the Negrito ancestors of the Andamese, who were in Uttar Pradesh as early as 85,000 BC.
Your answer would most DEFINITELY be D., because it is already stated that "men", (all people), easily abuse the right of liberty and may not be given 100% trust, so the government must make sure to help protect the right from the selfishness of the people's use of that right. :)
Einstein's two postulates of special relativity are as follows, 1. The principle of relativity: The laws of physics are the same in all inertial systems. ... The constancy of the speed of light: Observers in all inertial systems mea- sure the same value for the speed of light in a vacuum.