The type of interest group made up of workers who share the same type of job or work in the same industry is known as - a labor union - a trade association - an agricultural group - a professional organization

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.