23) under the greenhouse effect" (inct he greenhouse effect" (increasine atmospheric concentration of greenhouse merease in temperatures (temperature anomalies) should be observed during which season? a) summer b) spring c) fall/autumn d) winter e) no seasonal differences in expected patterns of warming 24) the "greenhouse effect" (increasing atmospheric concentration of greenhouse gases) should have the greatest observed influence on: a) daily minimum temperature b) daily maximum temperature c) influence both minimum and maximum equally d) no effect on daily minimum and maximum daily temperatures 25) data show that 2016 was the warmest year in the climate record (since 1880's)? a) true b) false 26) how would a global warming influence the net primary productivity of ecosystems inhabiting the arctic region. a) increase net primary productivity b) decrease net primary productivity c) no change in net primary productivity 27) eighteen thousand years ago, sea level was approximately 100 meters lower than today because: a) temperatures were warmer and therefore more water was in the atmosphere. b) patterns of precipitation were much higher c) patterns of precipitation were much lower d) there were more lakes e) none of the above 28) general circulation models of earth's climate predict that mean global annual precipitation will increase over the next 50 years as a result of rising atmospheric concentrations of greenhouse gases. a) true b) false 29) the dominant factor predicted to be responsible for future sea-level rise under a "greenhouse" warming is: a) melting of sea ice b) melting of continental glaciers c) thermal expansion d) none of the above