DSST Environmental Science

DSST Environmental Science Exam Prep Questions And Correct Answers Latest Version 2024

What is ecology? Study of organism interactions and surroundings. What are abiotic factors? Non-living factors in an environment. Give examples of abiotic factors in a salt marsh ecosystem. Climate, weather, water temperature, salinity, pH, soil composition, oxygen content. What are biotic factors? Living organisms in an ecosystem. Give examples of biotic factors in a salt marsh ecosystem. Marsh grass, shrubs, plant life, fish, worms, insects, shellfish, crabs, birds, bacteria, plank...

_______ describes the study of the interaction between organisms and their nonliving environment. Ecology. Ecology examines interactions in the natural world. Ecologists focus on the interactions of organisms, ___________, communities, ecosystems and biospheres. Populations. A population relates to an interacting group of the same species occupying a particular area at the same time. For example, a group of maple trees in the same forest. Ecologists focus on populations because of their impac...

Aldo Leopold wrote A Sand County Almanac published a year after his death in 1948; promoted a "Land Ethic" in which humans are ethically responsible for serving as the protectors of nature. John Muir founded Sierra Club in 1892; preservationist Rachel Carson one of the first people to realize the global dangers of pesticide abuse (DDT). Wrote Silent Spring. Fourier or Pouillet Person who coined phrase "Greenhouse Effect" Murray Bookchin social ecology Tragedy of the Commons si...

Biosphere part of Earth in which life exists including land, water, and air or atmosphere Consumption Crisis Occurs when people use up, waste, or pollute natural resources faster than those resources can be renewed, replaced, or cleaned up. Developed countries a wealthy country with an advanced economy. Developed countries have many industries and provide a comfortable way of life for most of their people. Developing countries a poor agricultural country that is seeking to become more a...

Environment The surroundings or conditions in which any given organism exists. Environmental Science Field of research that is used to understand the natural world and our relationship to it. Empirical Science Scientific investigation of the natural world through systematic observation and experimentation. Applied Science Research whose findings are used to help solve practical problems Trade offs The imperfect and sometimes problematic responses that we must at times choose between ...

nitrogen Wastewater treatment involves primary, secondary, and tertiary treatment. Tertiary treatment is typically used to remove... Diazinon What is an example of a nonpersistent pesticide? Environmental Impact Statement The National Environmental Protection Act's most important effect was to set up procedural requirements for all federal government agencies to prepare EISs. What is an EIS? make NPDES requirements applicable to storm water discharge A primary goal of the Water Quality...

Biodiversity It is a term used to describe the diversity (variations) of genes, species, and ecosystems within a region. Population A group of the same species living in the same geographic region at the same time. Mutualism A relationship between organisms that is beneficial to both organisms. In many cases of mutualism, the species cannot live without each other. Parasitism A relationship in which one organism, the parasite, lives in or on another organism, the host. The parasite gene...

Pure Science Seeks to answer questions about how the natural world works. Natural Resource Any natural substance used by a living thing. Hypothesis A testable explanation for n observation. Experiment when a Hypothesis is tested under controlled conditions. Environmental Science The study of how humans interact with the environment Environment Everything that surrounds us. Ecology The study how living thing interact with each other, and with their non-living environments. De...