Quiz (UG) Climate science

1. What are the three main anthropogenic greenhouse gases?

• Carbon dioxide, methane, nitrogen oxide
• Carbon dioxide, methane, nitrous oxide
• Carbon dioxide, ozone, nitrogen oxide
• Carbon dioxide, ozone, nitrous oxide
• Carbon monoxide, methane, nitrogen oxide
• Carbon monoxide, methane, nitrous oxide
• Carbon monoxide, ozone, nitrogen oxide
• Carbon monoxide, ozone, nitrous oxide

2. Greenhouse gases are

• opaque to visible light but transparent to ultraviolet radiation.
• transparent to visible light but opaque to infrared radiation.
• transparent to visible light but opaque to ultraviolet radiation.
• opaque to visible light but transparent to infrared radiation.

3. Observations show that, since pre-industrial times,

• temperatures are up and sea levels down.
• temperatures and sea levels are up.
• temperatures and sea levels are down.
• temperatures are down and sea levels up.

4. Using state of the art climate models to hindcast the 20th century, observed temperatures are

• roughly as expected with either human plus natural forcing or with natural forcing only.
• roughly as expected with human plus natural forcing, but unlikely with natural forcing only.
• roughly as expected with natural forcing only, but unlikely with human plus natural forcing.
• roughly as expected with human plus natural forcing, but impossible with natural forcing only.
• roughly as expected with natural forcing only, but impossible with human plus natural forcing.

5. By 2100, the global mean surface air temperature is projected to rise by

• 0.01 to 0.04 degree Celsius
• 0.1 to 0.4 degree Celsius
• 1 to 4 degree Celsius
• 10 to 40 degree Celsius

6. By 2100, the global mean sea level is projected to rise by

• 2 to 6 cm
• 20 to 60 cm
• 2 to 6 m
• 20 to 60 m

7. Temperatures are projected to

• go up in some places and down in others.
• go up everywhere and by the same amount.
• go up everywhere but by different amounts.
• go down everywhere but by different amounts.
• go down everywhere and by the same amount.

8. Precipitation is projected to

• go up in some places and down in others.
• go up everywhere and by the same amount.
• go up everywhere but by different amounts.
• go down everywhere but by different amounts.
• go down everywhere and by the same amount.

9. Storms are projected to

• become more frequent.
• become less frequent.
• not change their frequency.

10. Storms are projected to

• become more intense
• become less intense
• not change their intensity

11. As more carbon dioxide dissolves in water, oceans are projected to become

• oligotrophic.
• less acidic.
• eutrophic.
• less alkaline.