Which of the following is a greenhouse gas?
a. nitrogen
b. argon
c. oxygen
d. carbon dioxide
e. ammonia
d
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If a certain species of bacteria is capable of reproducing quickly enough that it could cover the earth in a one foot layer in two days, why hasn't this happened?
What will be an ideal response?
A plant called kenaf would help to reduce the pressure to cut trees because its fiber is very useful for
a. making paper b. home construction material c. furniture making d. fencing and decking material e. fabric for outdoor carpeting
The area shown on this cross section will experience subsidence from groundwater withdrawal. Which of the following statements is likely to be true about the subsidence?
A) The amount of subsidence will be constant across the area.
B) The aquifer will regain its porosity once the water is replaced.
C) The subsidence can be reversed (undone) by pumping in saltwater.
D) None of these are correct.
A definitive link between climate change and extreme weather events has been established
Indicate whether the statement is true or false