Final answer:
Based on the annual increase rate, the bird population is projected to reach 100,000 by the year 2005, which is not an option provided in the question, assuming a constant growth rate.
Step-by-step explanation:
To determine when the number of birds will reach 100,000, we must first calculate the yearly increase rate based on the given data. Between 2000 and 2001, the number of birds increased from 47,000 to 59,000. That's an increase of 12,000 birds in one year. Assuming this growth rate remains consistent each year, we can calculate the number of years it would take to reach 100,000 birds from the number recorded in 2001:
- Calculate the total increase needed to reach 100,000 birds: 100,000 - 59,000 = 41,000 birds.
- Divide the total increase by the annual increase to find the number of years: 41,000 ÷ 12,000 ≈ 3.42 years.
- Since we cannot have a fraction of a year, we round up to 4 years.
- Add these 4 years to 2001 to find the year when the number of birds will reach 100,000: 2001 + 4 = 2005.
Therefore, the population of birds is projected to reach 100,000 by the year 2005, not by any of the options provided (2024, 2025, 2026, 2027). However, the increase could vary due to many factors such as birth rates, death rates, and environmental changes.