Question

A – If only statement A is correct. B – If only statement B is correct.
C – If statements A and B are correct.
D – If none of the statements are correct.

1. (A) Climatologists study past climate conditions through global climate models.
(B) Paleoclimatology deals with climate events in the geological past.

2. (A) Glacial till at an area without glaciers suggests that glaciers were once there.
(B) The ratio of carbon isotopes O-18 to O-16 indicates the air temperature.

3. (A) Growth rings provide an indicator for paleoclimate.
(B) Microplankton is a good climate indicator as they have been here for a long time.

4. (A) The atmosphere has always been the oxygen-rich, life-supporting blanket of air.
(B) the Great Oxygenation Event enriched our atmosphere with essential O2 gas.

5. (A) Extremely warm fluctuation periods are known as icehouse periods.
(B) Extremely cold fluctuation periods are known as hothouse periods.

6. (A) Positions of continents provide an indication latitude change of landmasses.
(B) Volcanism increases the atmosphere’s greenhouse gases over time.

7. (A) Solar fluctuations and albedo affect short-term climate change.
(B) Milankovitch cycles and life evolution have affected long-term climate change.

8. (A) The Medieval Warm Period exhibited warmer global temperatures.
(B) The Little Ice Age was characterized by glaciation, crop loss, and scarcity.

9. (A) Permafrost is the ground layer that remains frozen for at least two years.
(B) Albedo is the amount of solar radiation reflected by the surface.

10. (A) Intergovernmental Panel on Climate Change studies weather and climate.
(B) Global Climate Models (GCMs) are used to study climate in detail.

Answer 1

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