#1
Which gas is primarily responsible for trapping heat in the Earth's atmosphere?
#2
What is the term used to describe the variety of life forms on Earth?
#3
Which of the following is NOT a component of the water cycle?
#4
Which of the following is a non-renewable resource?
#5
What is the term for the process by which plants convert sunlight into chemical energy?
#6
What is the term for the gradual increase in Earth's average surface temperature?
#7
Which of the following is a greenhouse gas?
#8
What is the primary cause of the hole in the ozone layer?
#9
What is the main source of water pollution caused by human activities?
#10
Which environmental phenomenon is caused by excessive nutrients in bodies of water?
#11
What is the term for the maximum population size of a species that its environment can sustain indefinitely?
#12
Which of the following is a major greenhouse gas emitted by agriculture?
#13
Which of the following is a renewable energy source?
#14
Which environmental issue is associated with the thinning of polar ice caps?
#15
Which of the following is an example of a point source of pollution?
#16