What is an important factor in the mid west that allows high food production? elevation, rainfall, climate, soil.

Soil is a very important factor in the midwest that allows high food production.

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.