enviromental changing

How can Global Warming cause sea levels to rise?

• by causing it to rain more often.

• by creating bigger and more powerful hurricanes.

• by melting glaciers and ice caps.

• by increasing the number of undersea volcanic eruptions.

Why does cutting down trees increase Global Warming?

• Trees absorb the Sun’s energy without radiating back into the atmosphere.

• Trees drain Greenhouse gases like methane from soil.

• Trees provide shade which counteracts Global Warming.

• Trees soak up Carbon dioxide.

How are Greenhouse gasses harming our environment?

• Less heat is able to escape causing the Earth to cool down.

• Less heat is able to escape causing the Earth to warm up.

• More heat is able to escape.

• They aren’t.

Things you can do to help decrease Global Warming include:

• Keep your air conditioner on high.

• Keep your deep freezer door open.

• Eat more ice cream.

• Turn off your lights when you’re not using them.

Which of the following could increase the amount of greenhouse gasses in our atmosphere?

• Burning fossil fuels

• Planting trees

• Walking to school and work

• Cutting down trees

How is the greenhouse effect produced?

• When solar energy trespasses the atmosphere.

• When some energy is reflected back to earth.

• When the green house is burned.

• When the sun doesn't emit radiation.

The graph below shows CO_2 emissions and temperatures from 1909 to 1949. What conclusion is best supported by the graph?

• There is no relationship between carbon dioxide concentrations and temperatures

• As carbon dioxide concentrations increase, temperatures increase

• As carbon dioxide concentrations increase, temperatures decrease

• As carbon dioxide concentrations decrease, temperatures increase

What is the greenhouse effect?

• A natural process where gases trap heat in the atmosphere.

• A man-made process where gases trap heat in the atmosphere.

• A natural process where the ocean traps heat in the atmosphere.

• A man-made process where the ocean traps heat in the atmosphere.

Increased levels of carbon dioxide in the atmosphere have been implicated in which of the following?

• Increased global warming
• Increased seawater acidity
• decreased seawater temperatures
• both increased global warming and increased seawater acidity

Which of the following would make a greater contribution to rising sea levels?

• melting sea ice
• melting land-based ice
• increased levels of precipitation in some areas
• increased levels of atmospheric water vapor