B11+-+Syllabus+Checklist

**﻿B11. Human influences on the ecosystem**

 * ======Serial No====== || ====== **Assessment Statement.**  ======

//All candidates should be able to://
|| ======Covered in Class====== || ======Revised @ home====== || ======I am certain====== || ======I need help====== ||
 * ====== 1  ====== || ======List the undesirable effects of deforestation (to include extinction, loss of soil, flooding, carbon dioxide build up).====== ||   ||   ||   ||   ||
 * ====== 2  ====== || ======Describe the undesirable effects of overuse of fertilisers (to include eutrophication of lakes and rivers).====== ||   ||   ||   ||   ||
 * ====== 3  ====== || ======Describe the undesirable effects of pollution to include:====== ||   ||   ||   ||   ||
 * || ======• water pollution by sewage and chemical waste,====== ||  ||   ||   ||   ||
 * ^  || ======• air pollution by greenhouse gases (carbon dioxide and methane) contributing to global warming.====== ||   ||   ||   ||   ||
 * ====== 4  ====== || ======Discuss the causes and effects on the environment of acid rain, and the measures that might be taken to reduce its incidence.====== ||   ||   ||   ||   ||
 * ====== 5  ====== || ======Explain how increases in greenhouse gases (carbon dioxide and methane) are thought to cause global warming.====== ||   ||   ||   ||   ||
 * ====== 6  ====== || ======Describe the need for conservation of:====== ||   ||   ||   ||   ||
 * || ======• species and their habitats,====== ||  ||   ||   ||   || ﻿ ||
 * ^  || ======• natural resources (limited to water and non-renewable materials including fossil fuels).====== ||   ||   ||   ||   ||