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Science

The concepts behind how the universe works — from subatomic particles to galactic structures, explained clearly.

0
Total terms
10
Subcategories
2 min
Avg. read time
33 terms
A
Acid Rain
This type of precipitation is rain that has been made acidic by pollutants in the atmosphere. It occurs when sulfur dioxide and nitrogen oxides react with water vapor, forming sulfuric and nitric acids that fall to the ground.
BeginnerEnvironmental Science2 min
A
Air Quality Index
The Air Quality Index (AQI) is a measure that indicates how clean or polluted the air is in a specific area. It helps people understand the health effects associated with different levels of air pollution.
BeginnerEnvironmental Science2 min
B
Biome
A biome is a large area of the Earth that has a specific climate and is home to certain types of plants and animals. Different biomes include forests, deserts, grasslands, and tundras, each with unique characteristics and ecosystems.
BeginnerEnvironmental Science2 min
C
Cap-and-Trade
Cap-and-Trade is an environmental policy tool that allows companies to buy and sell permits to emit a certain amount of greenhouse gases. This system aims to reduce overall emissions by setting a cap on total emissions and encouraging companies to lower their pollution levels.
BeginnerEnvironmental Science2 min
C
Carbon Dioxide
A colorless gas that is produced by burning carbon-based fuels and is also a natural part of Earth's atmosphere, carbon dioxide is essential for plant life. It is used by plants during photosynthesis to produce oxygen and glucose, making it a vital component of the carbon cycle.
BeginnerEnvironmental Science2 min
C
Carbon Footprint
A carbon footprint measures the total amount of greenhouse gases emitted directly or indirectly by an individual, organization, event, or product. It is usually expressed in units of carbon dioxide equivalents (CO2e). Understanding carbon footprints helps us recognize our impact on climate change and promotes more sustainable choices.
BeginnerEnvironmental Science2 min
C
Carbon Sequestration
This process involves capturing and storing carbon dioxide from the atmosphere to help reduce greenhouse gas levels. It plays a crucial role in combating climate change by preventing CO2 from contributing to global warming.
BeginnerEnvironmental Science2 min
C
Carbon Tax
A carbon tax is a fee imposed on companies for the carbon dioxide emissions they produce. It aims to reduce greenhouse gas emissions by making it more expensive to pollute, encouraging businesses to adopt cleaner practices.
BeginnerEnvironmental Science2 min
C
Carrying Capacity
Carrying capacity refers to the maximum number of individuals of a species that an environment can support sustainably. It is influenced by the availability of resources like food, water, and shelter.
BeginnerEnvironmental Science1 min
C
Circular Economy
A circular economy is an economic system aimed at eliminating waste and promoting the continual use of resources. It contrasts with the traditional linear economy, where products are made, used, and then discarded. The goal is to create a closed-loop system that maintains the value of materials, products, and resources in the economy.
BeginnerEnvironmental Science2 min
C
Climate Change
Climate change refers to significant changes in global temperatures and weather patterns over time. While climate change is a natural phenomenon, human activities, especially the burning of fossil fuels, have accelerated these changes, leading to serious environmental impacts.
BeginnerEnvironmental Science1 min
D
Deforestation
The removal of trees and forests, known as deforestation, leads to significant environmental changes. It occurs for various reasons, including agriculture, urban development, and logging, impacting ecosystems and climate.
BeginnerEnvironmental Science1 min
D
Desertification
Desertification is the process where fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture. It leads to a loss of productivity and can have serious impacts on food security and the environment.
BeginnerEnvironmental Science1 min
E
Ecological Footprint
An ecological footprint measures the environmental impact of an individual, community, or organization by calculating how much land and water area is needed to produce the resources they consume and absorb their waste. It helps to understand how human activities affect the planet's ecosystems.
BeginnerEnvironmental Science2 min
E
Emissions
Emissions refer to the release of gases and particles into the atmosphere, primarily from human activities such as burning fossil fuels. These emissions contribute to air pollution and climate change, affecting both the environment and human health.
BeginnerEnvironmental Science1 min
E
Environmental Policy
A set of laws and regulations aimed at protecting the environment is known as Environmental Policy. It guides how governments and organizations manage natural resources and address environmental issues.
BeginnerEnvironmental Science1 min
E
Eutrophication
Eutrophication is the process where water bodies become overly enriched with nutrients, leading to excessive growth of algae. This can harm aquatic life and disrupt ecosystems.
BeginnerEnvironmental Science2 min
E
Extinction
Extinction is the permanent loss of a species from the planet. It occurs when a species cannot adapt to changes in its environment or compete with other species for resources.
BeginnerEnvironmental Science1 min
F
Food Security
It is the state in which all people have reliable access to enough affordable, nutritious food. Food security ensures that individuals can meet their dietary needs and lead healthy lives.
BeginnerEnvironmental Science2 min
F
Fossil Fuel
Fossil fuel is a natural energy source formed from the remains of ancient plants and animals buried under layers of earth for millions of years. It includes coal, oil, and natural gas, which are burned to produce energy for electricity, heating, and transportation.
BeginnerEnvironmental Science2 min
G
Global Warming
It refers to the long-term increase in Earth's average surface temperature due to human activities, primarily the burning of fossil fuels. This process leads to higher concentrations of greenhouse gases in the atmosphere, which trap heat.
BeginnerEnvironmental Science1 min
G
Greenhouse Gas
A greenhouse gas is a gas that traps heat in the atmosphere, contributing to the greenhouse effect. This effect helps keep the Earth's surface warm enough to support life, but too much of these gases can lead to climate change.
BeginnerEnvironmental Science2 min
H
Habitat
A habitat is the natural environment where an organism lives, grows, and thrives. It provides the necessary resources such as food, water, and shelter for the survival of species.
BeginnerEnvironmental Science1 min
I
IPCC
The IPCC, or Intergovernmental Panel on Climate Change, is a scientific body that provides assessments of climate change based on the latest research. It aims to inform policymakers about the impacts and risks associated with climate change and offers guidance on how to mitigate these effects.
BeginnerEnvironmental Science2 min
I
Invasive Species
An invasive species is a plant or animal that is not native to a specific location and causes harm to the environment, economy, or human health. These species can outcompete native species for resources, disrupt ecosystems, and lead to significant ecological changes.
BeginnerEnvironmental Science2 min
M
Methane
A colorless and odorless gas, methane is a type of hydrocarbon that is a significant component of natural gas. It is produced by both natural processes and human activities and is a potent greenhouse gas, contributing to climate change.
BeginnerEnvironmental Science2 min
M
Microplastics
Small plastic particles less than 5 millimeters in size are known as microplastics. They come from various sources, including the breakdown of larger plastic items and the shedding of synthetic fibers.
BeginnerEnvironmental Science2 min
N
Nitrous Oxide
A colorless gas known as nitrous oxide is commonly used in medicine and as a propellant. It is also a significant greenhouse gas that contributes to climate change.
BeginnerEnvironmental Science1 min
O
Ocean Acidification
Ocean Acidification is the process where the ocean becomes more acidic due to the absorption of excess carbon dioxide from the atmosphere. This change in acidity can harm marine life, particularly organisms with calcium carbonate shells or skeletons, such as corals and some shellfish.
BeginnerEnvironmental Science2 min
P
Paris Agreement
The Paris Agreement is an international treaty aimed at combating climate change by limiting global warming to well below 2 degrees Celsius above pre-industrial levels. It encourages countries to set their own targets for reducing greenhouse gas emissions and to report on their progress regularly.
BeginnerEnvironmental Science2 min
P
Particulate Matter
Particulate Matter refers to tiny solid or liquid particles suspended in the air. These particles can come from various sources and can affect both health and the environment.
BeginnerEnvironmental Science2 min
P
Plastic Pollution
It refers to the accumulation of plastic products in the environment that adversely affects wildlife, wildlife habitat, and humans. This pollution occurs when plastic waste is not properly managed and ends up in landfills, oceans, and other natural areas.
BeginnerEnvironmental Science2 min
P
Pollution
It's the introduction of harmful substances into the environment, affecting air, water, and land. Pollution can come from various sources, including industrial activities, vehicle emissions, and waste disposal.
BeginnerEnvironmental Science1 min