The excerpt says that the atmosphere "affects our lives" and that it "controls" many things. These are both synonyms for it causing events. We can conclude this is cause and effect. The atmosphere is the cause and farming, crops, clothes, schedules, emotions are the effects.
I think it's A) When we get home we could play video games because it answers a who? what? when? when? why? how? question and it contains a subject as well as a verb.