Our atmosphere is _____% nitrogen gas

A(n) _____ is fresh (drinking) water underground

Animals use O₂ in the process of _____ to make more CO₂

Higher organisms use nitrogen to make their

The carbon in coal, oil, and natural gas came from

How does most of the carbon in an organism's body return to the environment after the organism dies?

Human processes mainly contribute to the

Nitrogen fixation is the process in which certain bacteria convert nitrogen gas into

Denitrification is the process by which some bacteria convert nitrates into .

_____ is when water evaporates from plants and goes into the atmosphere.

_____ occurs when water droplets that are large enough fall from clouds.

Water vapor that collects into a liquid is called _____.

Describing the cycling of elements between living organisms and the non-living environment.

Which biogeochemical cycle does NOT include a major path in which the substance cycles through the atmosphere?

Lightning, legumes, and bacteria are all part of which cycle?

Which of the following is NOT a way that carbon in dead organisms is returned to the carbon cycle?

In the water cycle, at which point does water enter?

Deforestation is a big concern. What gas would trees stop producing when cut down?

Producers take in ______ and give off ______.

Consumers take in _______ and give off _______.

Why might there be more carbon dioxide in the atmosphere in the winter?

Other than cellular respiration, what other process may increase carbon dioxide levels?

Which biological process would raise the levels of carbon dioxide in the atmosphere?

How do carbon-based nutrients get in the soil?

Which of these is NOT a carbon reservoir?

Organisms that make their own food are called _________.

Organisms that only eat the producers are called ________.

How does groundwater enters the atmosphere?

Which is the main regulator of carbon dioxide in the atmosphere?

Which is the major component of all living organisms?

Solar energy, geothermal energy, life processes of organisms, fossil fuel combustion from human are all part of......

Positive feedback loops....

Negative feedback loops.......

Parts of the geosphere (check all that apply)

The atmosphere contains gases that organisms need and keeps the Earth warm enough for life.

Freshwater is only ______________% of the Earths water

The Earth's water supply consists of _______________% saltwater.

What makes the water cycle work?

Humans are part of the __________

Energy can be created, destroyed and transformed.

Systems receive inputs and produce outputs?

Human Impact on the Water Cycle. (Check all that apply)

The Law of Conservation of Matter explains why the amount of matter in the environment constantly changes as it flows through biogeochemical cycles, such as the water cycle, that plays a role in all cycles.

The Carbon Sink explains how plants accepts the same about carbon as it uses

Where are the Carbon reserves (check all that apply)

Denitrification uses bacteria to convert nitrate ions in soil & water back to nitrogen gas.

Haber-Bosch discovered discovered______

What are the 2 largest reservoir for the phosphorus cycle?

Phosphorus is important for ______________ (check all that apply)

The biogeochemical cycles continue because of constant recycling, through producers, consumers and decomposers.

Species, Genetic and Ecosystem Diversity are all part of?

The tiger (Panthera tigris), jaguar (Panthera onca), and lion (Panthera leo) are all members of the same

Genetic diversity provides the raw material for adaptation to local conditions.

What must an organism be able to do with another organism to be considered the same species?

Speciation is a way to increase species diversity.

Extinction is the disappearance of a particular population from a given area only.

Extirpation is the disappearance of a particular population from a given area, but not of the entire species globally.

Habitat change and fragmentation are the least cause of biodiversity loss.

Poaching is....

Which Act is described by these 3 major parts? 1. Forbid governments and citizens from harming listed species and habitats, 2. Forbid trade in products made from listed species. 3. Requires U.S. Fish and Wildlife Service to maintain the official list of endangered and threatened species, and to develop a recovery plan for each listed species.

An area where the greatest number of unique species can be protected with the least amount of effort are called?

Which of the following terms describes an organism that is found in one place and nowhere else in the world?

Biodiversity is richer at the North & South poles and not near the equator.

What two things change biodiversity both locally & globally?

Endangered species are at a higher risk than threatened species of extinction.

Resist environmental change without losing function, and can be affected by change, but bounce back and regain function. Describes..........

Which of the following can have global and local impacts on biodiversity?

Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES, 1975): Bans international trade in body parts of endangered species.

International treaty to conserve biodiversity, Use biodiversity in a sustainable manner, Ensure fair distribution biodiversity’s benefits. are all parts of?

A Program to save individual species, includes captive breeding, education, and research

Captive breeding programs, Species Survival Plan, & Cloning are all part of.......

What is the correct hierarchy of taxonomic groups, from largest to smallest?

Bears living in cooler climates have thicker coats then bears living in warmer climates that have thinner coats because of?

Species diversity is the easiest component of biodiversity to measure.

Naturally occurring extinctions, occurring one species at a time, is known as?

Species diversity is the _______________ way to measure biodiversity in an ecosystem

Which of the following is the best way to provide local communities with income and protect biodiversity?

Raising and breeding organisms in controlled conditions, such as zoos, botanical gardens, or aquariums is known as

Everyone agrees the benefits outweigh the cost of the Endangered Species Act.

Scientists are able to explore the deepest oceans and have successfully catagorigized the species of many different oceans?

Ecosystem Services such as air & water purification, pest control & disease decomposition of wastes, food, fuel, and fiber have been identified by?

It is estimated that 33 trillion worth of ecosystem services are provided by Earth ecosystems such as wetlands?

All species extinctions affect an ecosystem equally?

Benefits of biodiversity in ecosystems include agriculture, medicine & ecotourism?

Waves of extinction tend to follow whenever people colonize islands and continents?

Threatened species facing a high risk of extinction including plants and animals are found on the?

Global population trends for certain terrestrial, freshwater, and marine species are tracked and summarized in the?

Check all that apply: Causes of Biodiversity Loss.

Economic Approaches to Conservation are? (check all that apply)

Conservation organizations that buy the rights to conserve resources instead of harvesting them are known as?

Wildlife Corridors____________________

Soil, fresh water, wild animals, and timber are examples of

Maximum sustainable yield, ecosystem-based management, and adaptive management are three approaches to

Most of the world's remaining forests are either boreal forest or

Which of the following logging methods would most likely result in regrowth such as that shown above?

Clear-cutting is a timber harvesting method in which

Deforestation has the greatest impact on biodiversity

The Healthy Forests Restoration Act

Salvage logging can

The policy of multiple use requires that national forests be managed for

When paper has a Forest Stewardship Council logo on it, the paper is

The aim of adaptive management is to harvest the maximum amount of a resource without reducing future harvests.

Forests cover about 15 percent of Earth's land surface.

Clear-cutting results in mostly even-aged stands of trees.

Deforestation is still occurring rapidly in some developing nations.

Most logging in the United States today takes place on public lands.

Read the following selection and answer the questions that follow.

Natural disasters are unavoidable. People in various regions of the United States must worry about mudslides, fires, hurricanes, tornadoes, and floods.

Disasters such as these can directly kill thousands of organisms, including people. Natural disasters also drastically alter habitats of many organisms because the soil, air, and water are all affected. Unfortunately, people's environmental decisions can worsen the damage done by natural disasters. For example, suppressing all wildfires can lead to larger, more destructive fires because these fires can use fuel that has built up for many years. Another example is deforestation, which makes forest soil more susceptible to erosion. With heavy rain, deforested hillsides can result in mudslides or can increase the risk of floods.

Which of the following factors would most likely contribute to an increase in large, destructive forest fires?

Read the following selection and answer the questions that follow.

Natural disasters are unavoidable. People in various regions of the United States must worry about mudslides, fires, hurricanes, tornadoes, and floods.

Disasters such as these can directly kill thousands of organisms, including people. Natural disasters also drastically alter habitats of many organisms because the soil, air, and water are all affected. Unfortunately, people's environmental decisions can worsen the damage done by natural disasters. For example, suppressing all wildfires can lead to larger, more destructive fires because these fires can use fuel that has built up for many years. Another example is deforestation, which makes forest soil more susceptible to erosion. With heavy rain, deforested hillsides can result in mudslides or can increase the risk of floods.

People's environmental decisions

Read the following selection and answer the questions that follow.

Natural disasters are unavoidable. People in various regions of the United States must worry about mudslides, fires, hurricanes, tornadoes, and floods.

Disasters such as these can directly kill thousands of organisms, including people. Natural disasters also drastically alter habitats of many organisms because the soil, air, and water are all affected. Unfortunately, people's environmental decisions can worsen the damage done by natural disasters. For example, suppressing all wildfires can lead to larger, more destructive fires because these fires can use fuel that has built up for many years. Another example is deforestation, which makes forest soil more susceptible to erosion. With heavy rain, deforested hillsides can result in mudslides or can increase the risk of floods.

Which of the following human activities most directly contributes to an increased incidence of mudslides?

Even though the National Forest Management Act was passed in 1976 and logging has declined in national forests, it is not guaranteed that policies will be followed due to political influence making the act vulnerable.

Logging on private land

Prescribed Burns is 100% controlled and there is no worry about the fires getting out of control and destroying properties.

Healthy Forests Restoration Act of 2003

The U.S. National Forests system was established in 1905 Because....

Advanced technology enables deforestation in developing nations to occur far faster than it has in the U.S.

After logging old-growth forest can be regenerated within a 20-30 year period of time.

Deforestation in the U.S. started because of the need for (check all that apply)

Deforestation usually replaces forested areas with (Check all that apply)

The Selection System of harvesting trees is the most cost-effective way of logging.

Seed-Tree & Shelterwood Approaches to harvesting trees is more damaging than clear-cutting and lead to mostly even-aged regrowth.

From 1950-1970 the most cost-efficient method for timber companies to harvest trees was clear-cutting.

Values in the forests include but are not limited to.... (Check all that apply)

Forestry is another name for?

Even-aged regrowth is more biodiverse than uneven-aged regrowth.

Harvesting trees through clear-cutting is the most dangerous for loggers, but the most environmentally friendly.

Which type of harvesting changes abiotic conditions in an area, including light penetration, precipitation, wind, and temperature?

Which type of resource management develops a customized management plan and is results-based?

Using the Ecosystem-Based Forest Management system of harvesting makes it easy to choose which areas to protect and which to harvest.

In Ecosystem-based Forest Management resources are...

In the Maximum Sustainable Yield (check all that apply)

Resource Management is guided by (Check all that apply)

The balance of human and ecological needs regarding the harvesting bust be a balance between...

In British Columbia, Clayoquot Sound loggers and the government have found the solution to balance and are working together for the greater good.

The study of our planet's natural systems and how humans & the environment affect one another is known as....

A naturally occurring molecule that absorbs and redirects harmful UV radiation. 

What began in early 1700s; driven by fossil fuels and technological advances

Social movement dedicated to protecting the natural world

Naturally formed more slowly than we use them

Study of behavior (good and bad, right and wrong), moral principles, and values

The total amount of land and water required to:

provide the raw materials an individual or population consumes

dispose of or recycle the waste an individual or population consumes

Objective, unbiased pursuit of knowledge about the workings of the environment and our interactions with it

Recognizes that quality of life is connected to environmental quality

Promotes fair and equitable treatment of all people regarding environmental policy and practice

Humans and human welfare most important

All living things have value; some may be more important than others

Describes a situation in which resources, made available to everyone, are used unsustainably and eventually depleted is known as the Tragedy of the Commons?

The study of disease in human populations—how and where they occur and how they can be controlled Often involves studying large groups over long periods

The process of measuring risk, it takes into account: The type of hazard

How frequently humans will be exposed to itHow sensitive people are to it

The study of how poisonous substances affect an organism’s health

Toxicity is a measure of how harmful a substance is. It depends on 2 things: What the substance is and how much of the substance is needed to cause harm.

Caused by pathogens. spread by human and animal contact and through contaminated food and water, cause of almost half of all deaths in developing nations. 

Diseases appearing in the human population for the first time or suddenly

beginning to spread rapidly. Humans have little or no resistance, and no vaccines have been developed. Facilitated by increasing human mobility, growing antibiotic resistance, and environmental changes

The WHO monitors health events worldwide and coordinates international responses to emerging diseases

Centers for Disease Control and Prevention (CDC): Responds to emerging diseases in the United States; the CDC developed pandemic plans to deal with the spread of the COVID-19 virus.

Carcinogens, Chemical mutagens, Teratogen, Neurotoxins, Endocrine disruptors, Allergens, are which types of Hazards?

Bioaccumulation is the buildup of toxic substances in the bodies of organisms

Biomagnification: The increased concentration of toxic substances with each step in a food chainPersistent organic pollutants are biomagnified and stay in the environment for long periods of time and over long distances.