#1
Which of the following is not a primary producer in an ecosystem?
#2
What is the main gas responsible for the greenhouse effect?
#3
Which of the following is a renewable resource?
#4
What is the term for the variety of different species in an ecosystem?
#5
Which of the following is an example of a non-renewable resource?
#6
Which of the following is an example of a keystone species?
#7
What is the term for the process of converting nitrogen gas into ammonia?
#8
Which of the following is a greenhouse gas?
#9
What is the term for the number of different species in an area?
#10
Which of the following is an example of a decomposer in an ecosystem?
#11
Which biome is characterized by long, cold winters and short, cool summers?
#12
Which of the following is a major cause of biodiversity loss?
#13
Which of the following is a characteristic of a sustainable ecosystem?
#14
What is the term for the loss of water from the surface of plant leaves?
#15