Use these terms in a sentence that explains their meaning a. trade union b. strike

Looking into joining a trade union is a beneficial thing because it can provide safety and help. 

The workers were getting unfair pay so they went on a strike.

Trade union is another way of saying labor union labor union means a organization of workers or almost always in a trade profession formed to protect rights of workers.                                                                                                                                                                                                                                    strike hit forcibly or with a foriegn object or to refuse to work because of unequality or low wages.