Answer: Development of irrigation systems to provide food for themselves
Explanation:
The Indus River valley achievements could be seen in how they developed their irrigation system to provide food for themselves. Enlisted are the following achievements they made;
1) They developed a uniform weight and measures.
2) They were the first to bring about urban sanitization systems.
3) Transportation and trade was their major goal
4) Their art was highly advanced.
The Treaty of Paris of 1763 (ended the French and Indian War/Seven Years' War between Great Britain and France, as well as their respective allies.) In the terms of the treaty, France gave up all its territories in mainland North America, effectively ending any foreign military threat to the British colonies there.
It is called hallucinations/delusion. In other words fake impression. You feel like there's someone but in reality there's no one. This happens because of chemicals released by brain(no idea about name)
Answer: unreliability
Explanation: Some of the problems that determine the quality of an experiment are reliability and validity.
Reliability considers the consistency of the experiment. In the example above, the result of the second sample is inconsistent with the result of the first sample, making Watt's research unreliable. That is, it does not reflect the ratings of a larger population. This problem can be solved by increasing the sample size, such that the average ratings are more reflective of a wider audience.
Validity considers the accuracy of the experiment. A lack of reliability of an experiment will likely make the result invalid as well, but this is not always the case.
