第四章测试1.What is the purpose of ecological restoration?（ ）
A:To destroy ecosystems that have been degraded. B:To create new ecosystems. C:To replenish natural services provided by degraded ecosystems. D:To prevent further loss of biodiversity.
答案:C
2.What is the first stage of ecological restoration?（ ）
A:Rehabilitating substrates B:Removing sources of disturbance C:Formulating project goals D:Assessing the site 3.What is phytodegradation?（ ）
A:The reduction of mobility of substances in the environment by limiting the leaching of substances from the soil. B:The use of plants to remove contaminants from soil or water into harvestable plant biomass. C:The use of plants or microorganisms to degrade organic pollutants in the soil or within the body of the plant. D:The enhancement of soil microbial activity for the degradation of organic contaminants. 4.Which habitats are most critical for restoring ecology?（ ）
A:Biodiversity hotspots. B:Coral reefs. C:Coastal wetlands. D:Temperate forests. 5.How long does ecological restoration take?（ ）
A:It takes only a few months for full recovery of the ecosystem. B:It takes thousands of years for full recovery of the ecosystem. C:It takes a few years for full recovery of the ecosystem. D:It takes years, decades, or even hundreds of years for full recovery of the ecosystem.
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