WSC-Science -2020

What is global warming?

• Rise in the average temperature of Earth's atmosphere and oceans

• Rise in temperature of areas near equator only

• Rise in temperature of areas near poles only

• None of the above

What is climate?

• Day to day changes in weather

• Week to week changes in weather

• Month to month changes in weather

• Long term changes in weather

Which of these are sources of CO₂?

• Respiring organisms

• Burning fossil fuels

• Plants making food

• Melting ice sheet

How does deforestation affect climate change

• Trees which have been cut down can no longer remove CO₂ from the atmosphere

• Trees which have been cut down can no longer make O₂

Which of these are ways that climate change affects the ocean?

• Makes oceans warmer

• Makes oceans less acidic

• Makes oceans more acidic

• Makes oceans contract due to warmer temperature

Technology will save us, let’s change the Earth’s climatic system in a big way

• Mitigation

• Adaptation

• Geoengineering

There is something we can do now, let’s reduce greenhouse gas emissions

• Mitigation

• Adapation

• Geoengineering

Since 1975, the atmospheric warming on the earth has ____.

• experienced extreme fluctuations from hot to cold

• increased at a more rapid pace

• decreased

• remained constant

• not changed

An interglacial period is characterized by ____.

• long periods of colder climate

• rapidly fluctuating temperatures

• extensive glaciation

• periods of warmer, stable climate

• falling levels of CO₂

Major climate models predict ____.

• a 2- to 4.5-degree centigrade rise in earth's mean surface temperature by 2100

• humans do not play a role in the changes in global temperature

• the falling of global sea levels

• lower temperature rises are only possible with drastic greenhouse gas increases

• sea level rise of 10 meters is most likely