Which gas is considered the main greenhouse gas that causes global warming?, Oxygen, Carbon dioxide, Nitrogen, Ozone, What is biodiversity?, The number of animal species in an ecosystem, The diversity of living organisms in an ecosystem, The number of plant species in an ecosystem, The number of people in an ecosystem, Which of the following factors is not a major air pollutant?, Industrial emissions, Vehicles, Sunlight, Agricultural industry, Which of these types of waste is the most harmful to the environment?, Plastic, Glass, Paper, Metal, What is an ecosystem?, The Plant Community, Animal Community, The community of living organisms and their habitat, A community of people.

Environmental issues.

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