This is science btw Ancient people looked to the night sky and saw the same patterns of stars in different seasons. One star pattern would come into view in early spring each year. Another star pattern would appear in summer, and so forth. People used these patterns to help them figure out when to plant and harvest crops. Before there were calendars, people used star patterns to help them plan.

Ancient people also used star patterns to help them find their way from place to place. Stars seem to move across the sky at night. By tracking the apparent movements of stars, people could navigate on land and on sea.

Analyze: Why do you think this ancient observatory was so important to scientists and others?

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

ok whats the question if not i cannot you i need question and need a thing to answer

0.88m hope i am correct : )