Answer:
B. Problem - Development - Research - Engineering solution
Explanation:
Hope this helps :)
Irrigation system gave the ancient civilizations fertile land which helped crops grow. It also allowed for ease of watering which made the process of farming faster.
THE ANSWER IS BIGGER THAN A REALY SMAL FRIDGE BUT SMALLER THANY A REALY BIG FRIDGE
School is an example like you have a load of work and its hard and u keep going cuz u know it will get you someone good adn another is running a marothon even though its hard you just keep going. hope this helps and please rate below :)
