Q1. What is the primary function of a biosphere reserve?A. Urban developmentB. Conservation of biodiversityC. Mining operationsD. Agricultural expansion
Q2. Which type of species is most vulnerable to extinction?A. Species with large population sizesB. Species with narrow habitat requirementsC. Species with high reproductive ratesD. Species that are widely distributed
Q3. Which of the following is a correct statement about species extinction?A. Current extinction rates are lower than natural extinction rates.B. Human activities have accelerated species extinction.C. Extinction occurs only due to natural disasters.D. Extinct species can always be revived.
Q4. Which factor is a key reason for the high biodiversity of coral reefs?A. Cold ocean currentsB. High nutrient availabilityC. Stable warm temperatures and clear waterD. Frequent storms
Q5. Which of the following statements about ecosystem stability is incorrect?A. Higher biodiversity leads to greater ecosystem stability.B. Ecosystems with fewer species are more stable.C. Species interactions contribute to ecosystem balance.D. Loss of keystone species can destabilize ecosystems.
Q6. Which factor does NOT contribute to the current high rate of species extinction?A. Habitat destructionB. Over-exploitationC. Increase in speciation rateD. Invasive species introduction
Q7. Which of the following is a consequence of biodiversity loss?A. Decline in plant productivityB. Lowered resistance to environmental disturbancesC. Increased variability in ecosystem functionsD. All of the above
Q8. Which factor is primarily responsible for species richness in the tropics?A. Frequent climatic changesB. High evolutionary time and stabilityC. Higher seasonal variationsD. Low energy availability
Q9. What is the estimated global species diversity according to Robert May?A. 1.5 millionB. 3 millionC. 7 millionD. 50 million