Deforestation Effects on Climate

Full name:

What science block are you in?

• 6B
• 6D
• 6E
• 6H
• 6I

What is deforestation?

• The act of removing old trees
• The act of removing selected trees
• The act of removing a wide area of trees
• The act of moving trees from one location to another location

Using the rate that trees are being cut down which was given in the video, how many trees would be cut down in 10 minutes?

• 360 football fields every 10 minutes
• 3600 football fields every 10 minutes
• 180 football fields every 10 minutes
• 240 football fields every 10 minutes

Why are forests helpful to climate change?

• They absorb nitrous oxide and release carbon dioxide into the atmosphere.
• They absorb oxygen and release carbon dioxide into the atmosphere.
• They absorb methane and release oxygen into the atmosphere.
• They absorb carbon dioxide and release oxygen into the atmosphere

How does burning forests affect carbon dioxide levels?

• It increases carbon dioxide because when a tree dies it releases its carbon dioxide.
• It increases carbon dioxide levels because the fire releases extra carbon dioxide into the atmosphere.
• It decreases carbon dioxide, but because we're destroying trees it then increases carbon dioxide.
• It doesn't change carbon dioxide levels but since we're destroying trees it then increases carbon dioxide.

The Albedo effect is when darker coloured surfaces absorb light or heat, and lighter coloured surfaces reflect light or heat back into the atmosphere. According to this effect, do trees absorb or reflect light and does this increase or decrease the temperature of the atmosphere?

• Trees absorb light/heat, which increases the temperature of the atmosphere.
• Trees absorb light/heat which decreases the temperature of the atmosphere.
• Trees reflect light/heat which increases the temperature of the atmosphere.
• Trees reflect light/heat which decreases the temperature of the atmosphere.

How does deforestation affect precipitation (rain)?

• It eventually decreases precipitation because the water is not being returned to the atmosphere.
• It eventually decreases precipitation because the trees don't need water for photosynthesis anymore.
• It eventually increases precipitation because the trees don't need water for photosynthesis.
• It eventually increases precipitation because the water is being returned to the atmosphere.

Select all the possible ways that the video said that we can reduce deforestation.

• Reduce, reuse, recyle!
• Protecting sensitive areas
• Planting more trees
• Keeping a plant
• Selective and partial harvesting

How is deforestation related to photosynthesis?