SDI Environmental Science Questions and Answers 100% Pass

SDI Environmental Science Questions and Answers 100% Pass By comparing a treatment (exposed) group and a control (unexposed) group, you have also made this a _________. Controlled Study This involves observation of events that have already happened. Natural Experiment _________: A term we use to describe logical, orderly, analytical assessment of ideas, evidence, and arguments. Critical Thinking This evaluates whether the structure of your argument makes sense. Logical Thinking Repeating studies or tests is known as __________. Replication A process for producing knowledge based on observations. Science Producing the same result consistently to be sure that your first outcome wasn't a fluke. Reproducibility This means understanding how to compare numbers and interpret graphs, to perceive what they show about problems that matter. Quantitive Reasoning A search for ecological stability and human progress that can last over the long term. Sustainability Reasoning from many observations to produce a general rule is _________. Inductive Reasoning The use of scientific approaches to understand the complex systems in which we live; the systematic study of our environment and our place in it. Environmental Science A measure of how likely something is to occur. Probability _________: An essential part of science; Understanding how much we don't know can improve our confidence in what we do know. Uncertainty Reasoning from general to specific is known as ____________. Deductive Reasoning _________: An orderly approach to asking questions, collecting observations, and interpreting those observations to find an answer to a question. Scientific Method Everything that takes up space and has mass is ____________. Matter Tipping points where rapid change suddenly occurs if you pass certain limits. Thresholds Those that receive inputs from their surroundings and produce outputs that leave the system. Open System The flow of energy and matter into, through, and out of a system. Throughout Composed of cells, minute compartments within which the processes of life are carried out. Organisms Under ordinary circumstances, matter is neither created nor destroyed but rather is recycled over and over again. Principle of Conservation of Matter ___________: A network of interdependent components and processes, with materials and energy flowing from one component of the system to another. System These are plant eaters. Herbivores When a system is in a stable balance, we say it is in __________. Equilibrium The smallest particles that exhibit the characteristics of an element. Atoms The number of children born to an average woman in a population during her entire reproductive life. Total Fertility Rate What term is used for parents having two or more than two children? Replacement level fertility This is the average age that a newborn infant can be expected to attain in any given society. Life expectancy ________: This involves estimating the amount of territory needed to support all your consumption of food, paper, computers, energy, water, and other resources. Ecological footprint analysis Factors that increase people's desires to have babies are called ___________. Pronatalist Pressures ________: This encompasses vital statistics about people, such as births, deaths, and where they live, as well as total population size. Demography ________: This estimates the relative amount of productive land required to support each of us. Ecological footprint ________: The number of births in a year per thousand persons. Crude birth rate ________: This allows couples to determine the number and spacing of their children. Family Planning ________: This occurs when births plus immigration in a population just equal deaths plus emigration. Zero population growth ____________: This involves shaping the land to create level shelves of earth to hold water and soil. Terracing It is now possible to build entirely new genes, and even new organisms, often called "transgenic" organisms or _____________. GMO ____________: This removes a thin layer of soil as a sheet of water flows across a nearly level or gently sloping field. Sheet erosion ____________: These are large-scale food shortages, with widespread starvation and social disruption. Famines ____________: This is a general term for nutritional imbalances caused by a lack of specific nutrients. Malnurishment ____________: The most abundantly used synthetic pesticides. Organophosphates ____________: This is a problem in farmland streams, where soil washes away from streambanks. Streambank erosion ____________: This has an aim to reduce or repair the damage caused by destructive practices. Sustainable Agriculture ____________: This is splicing a gene from one organism into the chromosome of another, has the potential to greatly increase both the quantity and the quality of our food supply. Genetic engineering ____________: This is a condition in which mineral salts accumulate in the soil, and is often a problem when irrigation water dissolves and mobilizes salts in the soil. Salinization