Carbon dioxide:
A) levels have started to decrease in the atmosphere due to increasing awareness.
B) is the most abundant and variable greenhouse gas in the atmosphere.
C) helps regulate Earth’s temperature by absorbing long wave radiation.
D) is considered one of the high global warming potential gases.
Greenhouse gases:
A) constitute a group of man-made gases in the atmosphere.
B) constitute a large proportion of all the gases in the atmosphere.
C) block short wave radiation from reaching the Earth’ surface.
D) trap long wave radiation, further heating the atmosphere.
In your lesson you were asked to read an essay on agriculture and our food supply. Which of the following was NOT given as a likely impact of global climate change on our food supply?
A) increased risk of droughts and wildfires
B) faster maturation of some crops and reduced yields
C) shifting habitat ranges for fish and shellfish
D) increase in milk production and the number of cattle