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Env Sci Midterms
| Question | Answer |
|---|---|
| Which of the following best describes the environment? | All the things around us with which we interact |
| Which statement best describes sustainable development? | Using resources to satisfy current needs without compromising future availability |
| Which of the following is an example of an anthropogenic effect? | Deforestation caused by human land development |
| Which of the following correctly identifies Earth's position in the solar system? | Earth is the third planet from the Sun |
| Which of the following is a characteristic of sustainability? | Conserving Earth's natural resources |
| Which of the following is an example of a life process? | Respiration |
| Which statement correctly describes energy? | Energy is the ability to do work or cause change |
| What is ecological succession? | The gradual change in the species structure of an ecological community over time |
| Which of the following is a biotic component of an ecosystem? | Plants |
| What is metabolism? | The sum of chemical processes occurring within an organism |
| Which of the following is one of the major biochemical cycles discussed in Module 3? | [CORRECTED] Water cycle |
| Which of the following is a human activity identified in the module that can degrade water quality? | Adding nutrients to water |
| What is nitrogen fixation? | The conversion of nitrogen into forms that can be used by organisms |
| Which element is an essential component of nucleic acids and phospholipids and is involved in the phosphorus cycle? | [CORRECTED] Phosphorus |
| Which of the following is one of the human impacts on the phosphorus cycle discussed in the module? | Mining phosphate rock for commercial fertilizers and detergents |
| What is symbiosis? | A close and persistent interaction between two different species |
| Which statement best describes a food web? | A network of interconnected food chains |
| What is a biome? | A community of plants and animals with common environmental characteristics |
| Which type of symbiotic relationship benefits both species? | Mutualism |
| How are aquatic biomes broadly classified in the module? | Freshwater and marine |
| An ecosystem contains several interconnected feeding pathways. What concept best describes this situation? | [CORRECTED] Food web |
| A tick obtains nutrients from a dog while the dog is negatively affected by the tick. Which relationship is illustrated? | Parasitism |
| Which ecological pyramid compares the amount of biomass at different trophic levels? | Pyramid of biomass |
| Which action directly addresses human impacts on local water resources? | Reducing unnecessary water withdrawal and protecting vegetation |
| Which biochemical cycle is directly associated with carbon released by burning fossil fuels? | Carbon cycle |
| Which cycle moves oxygen through the atmosphere, biosphere, and lithosphere? | Oxygen cycle |
| Emperor penguins huddle together to protect their eggs and maintain warmth. What type of adaptation is this? | Behavioral adaptation |
| Several frogs of the same species live and reproduce in one pond. What ecological level do they represent? | [CORRECTED] Population |
| After a wildfire, species gradually occupy the affected area and change over time. What process is illustrated? | Ecological succession |
| What concept examines whether resource consumption is within Earth's ability to regenerate resources and absorb waste? | [CORRECTED] Ecological footprint |
| A farming community removes vegetation to expand agricultural land. What environmental consequence is most consistent with Module 1? | Human activity can alter natural environmental processes |
| Which action is most consistent with sustainability? | Conserving resources and reducing unnecessary waste |
| What can cause Community A to have a larger ecological footprint than Community B? | Higher resource consumption and waste generation per person |
| How can human activities contribute to climate-related environmental change? | They can alter atmospheric conditions and contribute to environmental change |
| Why are energy, biomass, and numbers considered different ecological pyramids? | Each represents a different characteristic across trophic levels |
| How can a change in one population affect other organisms in a lake ecosystem? | Food webs contain interconnected feeding relationships |
| What distinguishes physical and behavioral adaptations? | Physical traits help survival, while behavioral changes alter an organism's actions |
| How does energy move through an ecosystem? | [CORRECTED] Solar energy is captured by organisms and transferred through biological processes and feeding relationships |
| Why are fossil-fuel emissions relevant to the carbon cycle? | They are human sources of carbon that alter carbon movement through the environment |
| How can human activities affect biochemical cycles? | They can affect the movement and availability of elements important to living organisms |
| Carbon present in the atmosphere is absorbed by plants for transpiration. | [CORRECTED] False |
| The circulation and utilization of oxygen in the biosphere. | Oxygen cycle |
| Which is NOT a way that carbon cycles through the biosphere? | [CORRECTED] Transpiration |
| A gas that is expelled from the body by the respiratory system. | Carbon dioxide |
| It is the recycling of water on earth, including atmospheric, surface and underground phases. | Water cycle |
| Of the water on Earth, 97.5% is salt water. | True |
| It is an integral component of every life form on earth. | [CORRECTED] Carbon |
| The formation of fossil fuels and sedimentary rocks contributes to the carbon cycle for very long periods. | True |
| Which cycle most likely includes sunlight, photosynthesis, and respiration? | Oxygen cycle |
| Through which process do living organisms release carbon into the atmosphere? | Cellular respiration |
| Evaporation of water from plants | [CORRECTED] Transpiration |
| Which gas is not an anthropogenic global warming gas? | Hydrogen |
| How do plants get nitrogen from the atmosphere? | Nitrogen fixation |
| It is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. | Transpiration |
| It is a transparent, tasteless, odorless, and colorless chemical substance, and it is the main constituent of Earth's hydrosphere. | Water |
| Which two cycles depend on photosynthesis for part of the recycling process? | Carbon and oxygen |
| Any form of water that falls from the clouds. | Precipitation |
| It is the movement of matter within or between ecosystems; caused by living organisms, geological forces, or chemical reactions. | Biogeochemical cycles |
| Plants undergo the process of photosynthesis and produce | Oxygen |
| Most of the earth’s sulfur is tied up underground rocks and minerals such as iron disulfide (pyrite) or calcium sulfate (gypsum). | True |
| Living organisms return carbon to the atmosphere thru cellular respiration. | True |
| Phosphorus cycle begins when phosphorus compounds are leached from rocks and minerals over long periods of time. | True |
| Weathering of rock is an important step in the phosphorus cycle. | True |
| Phosphorus can be stored in rock sediment. | [CORRECTED] True |
| The movement of phosphorus atoms from rocks through the biosphere and hydrosphere and back to rocks. | Phosphorus cycle |
| It is the process of excessive increase in phosphorus, or other nutrients in a particular water body | Eutrophication |
| It constitutes many cellular components like amino acids that form building blocks that make up various components of the human body such as hair, tissues and muscles. | Nitrogen |
| What is the main focus of Module 5? | Pollution environments |
| Which type of pollution is specifically included in Module 5? | Air pollution |
| Which distinction is discussed for air pollution? | Point-source and non-point-source pollution |
| Which environmental system is examined through surface and subsurface movement of water? | Water environment |
| Which is a source category of water pollutants? | Natural and anthropogenic sources |
| Which type of pollution is associated with the lithosphere in Module 5? | [CORRECTED] Land pollution |
| Which pollution type is associated with major sources and effects of sound? | Noise pollution |
| Module 6 focuses primarily on which environment? | Water environment |
| What does Republic Act 9275 concern? | [CORRECTED] Clean water |
| What is biological monitoring used to help examine? | Environmental conditions using biological indicators |
| What is a bio-indicator? | A biological indicator that can provide information about environmental conditions |
| Module 7 focuses primarily on | |
| Which topic belongs to Module 7? | [CORRECTED] Major sources and classes of air pollutants |
| Which law is specifically discussed in relation to air pollution? | Republic Act 8749 |
| What is one purpose of air-pollution control? | To reduce or manage harmful effects of air pollutants |
| Which of the following is an anthropogenic source of pollution? | Pollution resulting from human activities |
| Which module studies biological monitoring and bio-indicators? | [CORRECTED] Module 6 |
| Which pair is correctly matched? | [CORRECTED] Water pollution — Republic Act 9275 |
| Which sequence correctly represents Modules 5–7? | [CORRECTED] Pollution Environments → Water Environment → Air Environment |
| Why is it useful to study water and air environments separately? | They involve different pollutants, effects, processes, and management concerns. |
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kreiprie