Help super easy 6th grade

As our current atmosphere formed, the concentrations of various atmospheric gases fluctuated. match each gas with the explanation that best describes how its proportion changed during the evolution of the atmosphere.

Chris, a master at office gossip and innuendo, says, "we know we have a corporate spy someplace in the organization, probably on the management team itself. there is no evidence that it is audrey. in fact, she's too clean, if you know what i mean. somebody should fire audrey; she's got to be the spy." by making this argument chris is actually engaging in (a) an appeal to emotion fallacy (b) a straw man fallacy (c) an appeal to ignorance fallacy (d) circular reasoning (e) an appeal to the mob fallacy

Recently, there has been pressure to loosen clean air standards. use economic arguments to support or oppose this proposed action.