the more questions the more points yknow! If someone can solve these ALL, you will get brainliest! or however you spell it, i've just been frustrated by it haha!

7.The two best-known excavated cities of this culture are Harappa and Mohenjo-daro (located in modern-day Pakistan), both of which are thought to have once had populations of between 40,000-50,000 people, which is stunning when one realizes that most ancient cities had on average 10,000 people living in them.

8.The Great Bath is one of the most well-known remarkable structures among the ruins of the ancient Indus Valley Civilization excavated at Mohenjo-daro in Sindh, Pakistan.

9.An ancient civilization is a topic that helps students have a better understanding of the world. By understanding the progression, it will improve their understanding of the world and the people who live in it. Ancient civilizations provide insight into why and how history has unfolded and become as it is.

10.Written records gave historians a great deal of insight into the civilizations of ancient Mesopotamia and Egypt, but very few written materials have been discovered in the Indus valley. Though seal inscriptions do seem to have written information, scholars have not been able to decipher the Indus script.

11.Many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change. By 1800 BCE, the Indus Valley climate grew cooler and drier, and a tectonic event may have diverted or disrupted river systems, which were the lifelines of the Indus Valley Civilization.

Explanation

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.