Can the weather change during the same day?

• Yes, because it's an average of measurements over a long period of time.

• Yes, because weather parameters can be influenced by a lot of different factors

• No, because it's a stable situation

• No, because in a certain locality it's quite stable

If we have one cold summer, does that mean that our climate has changed?

• Yes, because the measurements are reliable

• Yes, because measurements for that area never change

• No, because weather keeps changing over a short period

• No because climate is based on average measurements which means higher and lower temperatures in an area over a long period

The greenhouse effect, which causes global warming is caused by (tick all correct answers)

• Water vapour

• Carbon dioxide

• Methane

• Clorofluorocarbons (CFCs)

• None of the above

Since the increase of the 3 greenhouse gases due to man's activities, CO2, methane and nitrous oxide, the gas which plays the largest role in contributing to warming of the Earth is _______.

Which of the following activities of man increase the greenhouse gas METHANE?

• decomposition of waste in landfills

• rice cultivation

• manure produced domestic through livestock raising

• all three

A primary reason we know that human activity is causing global warming is:

• CO2 has decreased in the atmosphere over the past ten years

• Earth's atmosphere is getting thinner

• We can correlate the rise of CO2 with human activities

• All answer choices are correct

The following human activities produce greenhouse gases except for:

• Driving cars

• Walking, biking, & swimming

• Animal agriculture

• Generating electricity from natural gas, oil, & coal

How does the ozone layer impact life on Earth?

• The hole in the ozone layer is the main reason for climate change

• It filters out harmful UV radiation from sunlight

• It magnifies sunlight, causing sunburn

• Aerosol cans still contain CFCs that thin the ozone layer

The gradual increase in the temperature of Earth’s atmosphere is called:

• Global warming

• Ice warming

• Water warming

• Variation hypothesis

What is climate change?

• a sudden change in conditions like temperature and rainfall

• an extreme weather event such as a hurricane or drought

• a myth about global warming

• a change in temperature and weather patterns over many years