Toefl Junior Reading Comprehension Practice Test Pdf <Direct — SERIES>

Second, urban environments generally use fewer pesticides than farmland. Farmers often spray chemicals to protect their crops from insects. These chemicals can be deadly to bees. In cities, however, the use of such chemicals is more restricted, especially in public parks and community gardens. As a result, urban bees face fewer direct threats from pesticides.

Scientists have discovered that cities are becoming important refuges for certain bee species that are declining in rural areas. For example, the common blue-banded bee, once rarely seen near farms, is now frequently spotted in city gardens in Australia. Similarly, in London, the number of bee species found in urban gardens is often higher than in nearby farmlands. toefl junior reading comprehension practice test pdf

Surprisingly, cities can offer bees several advantages. First, cities often have a longer growing season. In the countryside, large farms may grow only one or two types of plants for a short period. After the harvest, there may be very few flowers left. In contrast, cities have many small gardens, parks, and tree-lined streets with different kinds of plants that bloom at different times of the year. This provides bees with a steady supply of nectar and pollen from spring through late autumn. In cities, however, the use of such chemicals

Nevertheless, city life is not without challenges. Bees in cities must deal with higher levels of air pollution, which can affect their ability to find flowers by smell. Additionally, there are fewer large, open spaces for nesting. Many urban bees, however, have adapted by nesting in small cracks in walls, under roof tiles, or even in abandoned vehicles. For example, the common blue-banded bee, once rarely