What were some of the major problems that rome faced in the 3rd ce?

Some of the major problem that the Roman Empire faced during the 3rd century ere invasion, civil war, economic depression, and plague.  Because of these major problems, the Roman Empire nearly collapsed. The crisis that the empire experience started when Emperor Severus Alexander were assassinated by his own troops.

b. great plains

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answer: this is because archeologists keep finding artefacts and ancient ruins dated more than 10000 to 15000 years, date around scientists said humans discovered language; which is at least mysterious as scientists always have said that is necessary to have a language to have architecture and some basic maths.

explanation: brainlest