One common factor of the five mass extinctions A. An increase in carbon dioxide

Question

One common factor of the five mass extinctions A. An increase in carbon dioxide B. A decrease in carbon dioxide C. An increase in oxygen D. A decrease in oxygen Which greenhouse gas is more potent than CO_2 A. Ethanol B. Gasoline C. Oxygen D. Methane What causes more greenhouse gases than all the direct emissions form the entire transportation sector? A. Factories B. Single family homes C. Livestock D. None of the above Which extinction was the biggest in the history of the planet when almost all of life disappeared? A. The Permian extinction B. The KT extinction C. The anthropocene D. The Devonian What will contribute to vast amounts of methane entering the atmosphere as a result of global warming? A. Sea level rise B. Arctic ice melting C. Hydrothermal vents erupting D. Acid rain

Explanation / Answer

6. Mass extinction is the phenomenon in which a large number of species of life on earth became extinct in a short period of time.

Mass extinction was caused by huge volcanic event that went on for long time and released a lot of CO2 into the atmosphere. This caused acidification of oceans, wiping out majority of life on earth.

Hence option A is correct.

7. Methane is roughly 30 times more potent as heat trapping gas. Hence option D is correct.

8. As per FAO report global meat production was responsible for 18% of greenhouse gas emission which is more than all the world's automobile emissions.

Hence option C is correct.

9. Permiam-triassic extinction event was deadliest in which 90% of all species perished.

Hence option A is correct.

10. The global warming leads to melting of glaciers and hence rise in sea level.

Hence option A is correct.

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.