Which of the following are reasons for using models : a. Give the exact answer
b. Tells you what you need to do
c. Save time
d. Take easy problems and make them easier

The correct answer is B) Tells you what you need to do.

Which of the following are reasons for using models?

Tells you what you need to do.

Scientists like to use models in their research because models help scientists visualize things they can’t see. And using the model on a minor scale, scientists can better study the phenomenon and come with a solution that can be applied.

When scientists use models, what they are doing is representing the issue at hand on a minor scale to describe the nature of the research and the possible solutions. Otherwise, the phenomenon is too big or complicated in real life, which often presents big challenges to scientists.

that is alot i do not no

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.