2. How long would it take to turn carbon dioxide to stone?
(a) Several months.
(b) Hundreds of thousands of years.
(c) Hundreds of years.
(d) Several years.

3. What does Mark Tizard want the general population to know about genetic modification?
(a) It is a new and possibly dangerous science.
(b) It is scary but necessary.
(c) It has been taking place forever, as we live in a genetically modified environment.
(d) It is an exciting branch of bioengineering that needs to be further explored.

4. What idea did Lackner and his friend Wendt come up with?
(a) Ireland.
(b) Auxons.
(c) Ten billion years.
(d) Humans are not very intelligent.

5. How many trees would have to be planted to remove a significant amount of carbon dioxide?
(a) A million.
(b) A trillion.
(c) 900,000 thousand.
(d) A billion.

6. What is unfortunate about carbon, even if emissions are reduced or stopped?
(a) It takes several years to dissolve.
(b) Once in the air, it stays there.
(c) It is always poisonous.
(d) It does not turn to stone easily.

7. What bacteria is included in Kolbert’s genetic modification kit?
(a) Bacillus.
(b) Vibrio.
(c) Coccus.
(d) E-coli.

8. What problem is the Australian Animal Health Laboratory in Geelong, Australia trying to correct?
(a) Severe drought and wildfires.
(b) Deforestation.
(c) Non-native and invasive species of coral.
(d) The overpopulation of a non-native species of toad.

9. Where did the house mouse originate?
(a) Europe.
(b) Africa.
(c) Indian subcontinent.
(d) North America.

10. What did Lackner found in 2014 at ASU?
(a) The Center for Negative Carbon Emissions.
(b) The Center for Disease Control.
(c) The Center for Solar Geoengineering Studies.
(d) The Center for Global Cooling.

11. What is CRISPR?
(a) A technique for breeding species.
(b) A series of genetic testing.
(c) An air fryer.
(d) A collection of techniques used to make it easier to manipulate DNA.

12. To what has gene-drive technology been compared?
(a) Stanley Kubrick’s A Clockwork Orange.
(b) Steven King’s It.
(c) Kurt Vonnegut’s ice-nine.
(d) Tim Burton’s Beetlejuice.

13. Kolbert says that, without help, most of the carbon dioxide humans emit would turn to stone eventually, called what?
(a) Chemical aging.
(b) Chemical solidification.
(c) Natural stoning.
(d) Chemical weathering.

14. What is done to make the geothermal plant cleaner that Kolbert visits?
(a) The hydrogen sulfide is dissolved in water and then injected it into the ground.
(b) The carbon dioxide is dissolved in water and then injected it into the ground.
(c) The carbon monoxide is dissolved in water and then injected it into the ground.
(d) The hydrogen dioxide is dissolved in water and then injected it into the ground.

15. Kolbert mentions that effects of the first few months of the coronavirus pandemic and how emissions dropped how much?
(a) 17%.
(b) 7%.
(c) 97%.
(d) 70%.