Sometimes called existential risks, these include natural disasters ​ — such as asteroid or comet impact, supervolcanoes, the death of the sun, or global warming — ​ and they also include man - made catastrophes ​ — such as nuclear war or bioterrorism.
परमेश्‍वर का वचन कहता है, “पृथ्वी सर्वदा बनी रहती है । ”