Climate Change (basic)

Why is the increase of Greenhouse gasses a big issue?

• It causes climate change and an increase in the global temerature 
• It can lead to a major increase in Greenhouses 
• It leads to more factories
• It causes a major decrease in people

Which one of the choices below is NOT a  cause for global warming?

• Having too many farm animals
• Burning Fossil Fuels
• Planting new trees

What do humans do that releases greenhouse gases into the atmosphere?

• Burn fossil fuels (like gas and coal)
• Build cement buildings
• Ride bikes and use solar energy
• Compete in the Olympics

Which of the following have been linked to climate change?  

• droughts
• flooding
• melting of polar ice caps
• all of the above

Which of the following is not a greenhouse gas?

• Carbon dioxide
• Methane
• Water vapour
• Nitrogen

Climates are classified according to two major factors:

• elevation and precipitation

• latitude and temperature

• elevation and latitude

• precipitation and temperature

Which of the following has caused repeating 100,000-year cycles of ice ages in the past?

• an increase in sun spots

• several major volcanic eruptions

• changes in Earth's orbit and the tilt of its axis

• continental drift

Scientists observe the thickness of a tree's _________ to learn about past climate conditions.

• rings
• branches
• roots
• bark

The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?

• lower levels of ozone in the atmosphere
• lower levels of nitrogen in the atmosphere
• higher levels of carbon dioxide in the atmosphere
• higher levels of oxygen in the atmosphere

Which of the following is the best conclusion that can be made from this graph?

• atmospheric carbon dioxide levels have been decreasing since 1960
• Hawaii has a lot of carbon dioxide
• humans have been working hard to decrease carbon dioxide levels
• atmospheric carbon dioxide levels have increased steadily since 1960