Suppose government officials have set emissions tax to reduce pollution. further suppose that with the emissions tax the marginal social cost of pollution exceeds the marginal social benefit of pollution. the emissions tax is

The emissions tax is too Low.
Marginal cost indicates the level of sacrifice that we need to choose a certain decision and marginal benefits indicates the level of benefit that we would receive when choosing a certain decision.
If the marginal cost of the pollution exceeds the marginal benefit, we could conclude that we're not doing enough effort as a response.

Ongoing civil wars western roman empire finally collapsed476 c.e. romulus, the last of theroman  emperors in  the west, was overthrown by the germanic leader odoacer, who became the first barbarian to rule in rome. the order that the  roman empire  had brought towestern  europe for 1000 years was no more.