Some one pls help and don't answer for the points I really need help how did climate and geography affect the settlers of ancient Greece

O their economy struggled because the location made trading difficult
O they built homes into mountainsides to keep homes cooler in the summer
O their economy struggled due to the lack farmland and fishing grounds
O they raised animals in the mountains and grew crops on the coasts

A their economy struggled because the location made trading difficult

Explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.