ESRM 100 Exam 1 Questions with 100% Correct Answers | Latest Version 2024 | Verified

ESRM 100 Exam 1 Questions with 100% Correct Answers | Latest Version 2024 | Verified The subject of this course is - environmental science An ecosystem is a location on Earth that includes - interacting living and non-living components Historically, ___ has/have kept the world population out of food deficit - innovation in agricultural practices Solar radiation enters the Earth system, and energy leaves it in the form of heat and reflected light. Therefore, with respect to energy, Earth is: - an open system Which of the following is not an abiotic factor? - bacteria (Yes = sunlight, pH, water) Approximately what percentage of species that have lived on the planet are now thought to be extinct? - 99% Most demographers estimate that the human population will stabilize between ___ and ___ billion people by 2100. - 6.8; 10.5 A system that is in a steady state can be characterized by the following statement: - System inputs equal system outputs Matter is - anything that has volume and mass The change in genetic composition of a population over time is called: - evolution Which group of organisms performs photosynthesis? - Autotrophs Which of the following are needed for photosynthesis? - Water, solar energy, and carbon dioxide The difference between potential and kinetic energy is that - potential energy has not yet been released Why do areas near large bodies of water have moderate climates? - It takes a lot of energy to change the temperature of water due to hydrogen bonding As members of a species reproduce, increasing the population size, they create more offspring that will be able to reproduce in turn. This is an example of: - positive feedback Which stage of the hydrologic cycle is the most direct cause of algal blooms? - runoff When nutrients are transported through soil with water, this process is known as - leaching The population with the greatest ability to respond to environmental change most likely is the one with - high genetic diversity Which of the following is the best example of artificial selection? - Breeding of horses for speed Which type of population distribution can enhance protection from predators? - Clumped distribution Organisms that eat dead or decaying matter are called - scavengers In a chemical reaction, - atoms are neither created nor destroyed Which type of species would be most vulnerable to environmental changes? - Niche specialists Electrons are - negatively charged At present, Earth's human population is - increasing exponentially Evidence of biodiversity is seen most directly in the - number of species in a region ____ % of the world's most developed population consumes ___ % of the world's energy - 20; 58 During what stage of the hydrologic cycle is water released to the atmosphere from plants? - Transpiration When an organism has a trait that improves that individual's fitness for an environment, it is known as: - an adaptation Population growth rates are high in developing countries