| A | B |
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| A biogeoclimactic zone looks at what 3 factors? | Types of organisms, types of topography (mountains, plains etc), climate |
| Why do we have summer and winter? | Due to tilt of earth (Northern Hemisphere tilted towards sun in summer, away in winter) |
| If you lived near the north pole, what would be special about your summer? | You would have nearly 24 hours of daylight. |
| How do scientists know about past climate hundreds or thousands of years ago? | By using tree rings, ice cores or sediment layers. |
| Why might our summer and winter reverses in about 23 000 years? | Earth wobbles on its axis over this period. |
| Calgary Alberta and London, England are at about the same latitude north, yet Calgary has a way warmer climate. Why? | London has more moderate weather due to warm ocean currents. |
| What kind of weather would BC get in an El Nino year? A La Nina year? | El Nino - mild winter La Nina - Cold winter |
| Conditions in which part of the world cause El Nino and La Nina? | Ocean currents in the South Pacific off of South America. |
| Why is the NATURAL greenhouse effect important? | without it earth would be about 30 degrees cooler. |
| How do catastrophic events (large volcanic eruptions, meteorite impacts) affect our climate? | Dust and ash is shot into atmosphere, cooling earth. |
| How has man added to the greenhouse effect? | By adding greenhouse gases (GHG) |
| Carbon dioxide is a very weak greenhouse gas...so why is there so much attention put on your "carbon footprint"? | We produce a lot of carbon, so it has bigger impact even thout it is a weak greenhouse gas. |
| What are some possible impacts of global warming in BC? | increase in forest fires, change in types of organisms, loss of snowmelt/water supply pressures, effects of fish (very sensitive to temperature) |
