EXAM 1 CH 1-3 ENVIRONMENTAL SCIENCE QUESTIONS & ANSWERS 2023/2024

EXAM 1 CH 1-3 ENVIRONMENTAL SCIENCE QUESTIONS & ANSWERS 2023/2024 What is the world's current total population? - ANSWER-7 billion In 1987 UN World Commission on Environment and Sustainability introduced the concept of what as a necessary focus for maintaining sustainability? - ANSWER-Human well being Living and nonliving parts and the processes that connect them make up - ANSWER-ecosystem What is biotic factor..? Give examples - ANSWER-living components of an ecosystem. They are sorted into three groups: producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores. ex. bactria What is non biotic factor? Give examples - ANSWER-non living things such as the climate change , sunlight, and water Principle of Ecosystem - ANSWER-*Matter and energy are neither created nor destroyed *Ecosystems are open to gains and losses of energy and matter *Ecosystem processes are self-regulated *Ecosystem change is essential and inevitable Green house, gas burning fuel,and fuels D are all activities that increase what? - ANSWER-Atmospheric Carbon Dioxide A proposed explanation based on observation is a what? - ANSWER-Hypothesis