Guardian: Tornadoes, shrinking ice and early syrup

Which of the following is an example of a short-term natural cyclic fluctuation associated with climate change?

• El Niño
• Milankovitch cycles
• Greenhouse effect
• Endangered species

What are the two atmospheric gases that impact the greenhouse effect?

• Oxygen and nitrogen
• Carbon dioxide and methane
• Hydrogen and helium
• Water vapor and ozone

What is the term used to describe the gradual change in species composition in an ecosystem over time?

• Ecological succession
• Biodiversity
• Keystone species
• Indicator species

Which type of species plays a critical role in maintaining the structure and function of an ecosystem?

• Invasive species
• Endemic species
• Native species
• Keystone species

Which term is used to describe a species that is found only in a specific geographic area?

• Indicator species
• Endangered species
• Native species
• Endemic species

What is the term used to describe a species that serves as an early warning sign of environmental changes?

• Indicator species
• Invasive species
• Endangered species
• Keystone species

Which term is used to describe a species that is at risk of extinction?

• Indicator species
• Invasive species
• Endemic species
• Endangered species

Which of the following is an example of a long-term natural cyclic fluctuation associated with climate change?

• El Niño
• Milankovitch cycles
• Greenhouse effect
• Endangered species

What is the term used to describe the trapping of heat in the Earth's atmosphere?

• Ozone depletion
• Greenhouse effect
• Acid rain
• Global warming

Which of the following is NOT a factor that can contribute to ecosystem resilience?

• Biodiversity
• Keystone species
• Invasive species
• Endemic species