#1
Which gas is primarily responsible for trapping heat in the Earth's atmosphere?
#2
What is the term for the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll?
#3
What is the term for the variety of life on Earth, including the diversity of ecosystems, species, and genetic variations?
#4
Which of the following is a major cause of deforestation?
#5
Which of the following is a characteristic of a keystone species?
#6
What is the primary source of energy for most ecosystems on Earth?
#7
Which of the following is a primary consumer in a typical food chain?
#8
What is the term for the gradual process of change and replacement of the types of species in a community over time?
#9
What is the term for the process by which water vapor turns into liquid water?
#10
Which of the following is a non-renewable energy source?
#11
Which of the following is an example of a renewable resource?
#12
What is the term for the process by which nitrogen is converted into compounds that can be absorbed by plants?
#13
Which of the following is NOT a greenhouse gas?
#14
What is the term for the practice of using resources in a way that they are not depleted or permanently damaged?
#15
Which of the following is a characteristic of an invasive species?
#16
What is the term for the variety of different species within a given ecosystem?
#17