Portland has been known as the “City of Roses” for more than a century－but why? Roses are not native to the region, __31__ did any Portland gardeners reach international stardom by breeding the best rose blossoms. __32__ , Portland’s affinity for roses started with a wedding gift and resulted in a WWI safe haven for European roses. According to the Oregon Encyclopedia, the first rose bush in the Pacific Northwest was sent to Anna Marie Pittman in 1837 33 she married Jason Lee, a missionary near Champoeg. Clippings from that bush were planted in Champoeg Park, Willamette University and the surrounding area._34__ visitors to the exposition, the City of Portland planted around 10,000 bushes of the revered Madame Caroline Testout rose along Portland’s streets. The voluptuous Madame Caroline Testout rose is perhaps the most popular __35__ of hybrid tea rose, named after a nineteenth century French dressmaker in 1890.

       Wildlife conservation and climate action are often considered as separate environmental issues, but the two are actually closely connected. Many people know that combatting climate change helps save wildlife populations around the __36__ , but the opposite situation is also true. That is, wildlife conservation plays an important __37__ in regulating the climate. Through saving wildlife, we help save the planet, including ourselves. Today, the earth is__38__ its sixth mass extinction event, caused by human activity and global temperature rise. A research report has pointed out that, in less than 50 years, the world has already __39__ 69% of all mammal, fish, bird, reptile, and amphibian populations. This has threatened humans because the presence of a rich variety of life on earth is critical for the health of this planet. __40__ biodiversity, all species work together within their respective ecosystems to maintain a necessary balance and support life.