Environment & Nature

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Which is the largest coral reef system in the world?

What is the term for the process of making the environment dirty?

What is the term for the process of keeping resources for the future?

Which chemical compound is the primary component of the shells of marine organisms?

Which gas is the most abundant in the sun?

What is the pH of \'neutral\' water?

Which gas is often released from melting permafrost?

Which material takes the longest to decompose in a landfill?

What is the term for the amount of water vapor in the air?

Which gas is released by animals?

Which gas is released by plants?

Which natural disaster is measured using the Richter scale?

What is the term for the loss of a forest?

Which is the largest animal to ever live on Earth?

What is the term for the study of the relationships between living organisms and their environment?

Which gas is the primary cause of acid rain?

Which animal is known for its trunk?

What is the name of the zone in the ocean where sunlight cannot reach?

What is the term for non-native species that cause harm to an environment?

What is the term for a scientist who studies the Earth\'s physical structure?

Which sea animal is known for its ability to change color?

What is the term for an animal that eats only plants?

Which region has the highest biodiversity?

Which protocol was designed to protect the ozone layer?

What is the largest land animal currently alive?

What is the term for the study of fossils?

What is the term for a large area of ice covering land?

Which phenomenon describes the gradual increase in the Earth\'s average temperature?

Which gas is a major component of the atmosphere of Venus?

What is the term for the study of insects?

What is the term for a sudden overflow of water?

Which layer of the Earth is responsible for the magnetic field?

What is the term for the variety of ecosystems in an area?

Which nutrient cycle does not have a gas phase in the atmosphere?

Which ocean is the smallest?

What is the term for the process of making things new again?

What is the term for an animal that eats both plants and animals?

Which nutrient is essential for plant growth and often found in fertilizer?

What is the primary function of the Earth\'s magnetic field?

Which type of pollution affects the Earth\'s atmosphere?

Which process involves the release of energy from food?

Which type of clouds are known as \'thunderheads\'?

What is the process by which plants use sunlight to make food?

Which continent is home to the largest desert in the world?

What is the term for the study of the Earth\'s physical features?

What is the term for the study of the Earth\'s water?

What is the term for the transition area between two different biomes?

What is the term for the process by which land turns into desert?

Which renewable energy source uses the movement of water to generate electricity?

Which gas do animals exhale as a waste product?

Which gas is commonly found in soda?

Which cycle involves the movement of carbon through the atmosphere, oceans, and land?

What is the term for the warming of the ocean surface in the central and eastern Pacific?

What is the term for a group of different species living together?

What is the term for the amount of salt in water?

What is the term for the study of life?

Which animal is known for its shell?

What is the term for the point on the Earth\'s surface directly above an earthquake?

Which gas is primarily released during the burning of fossil fuels?

What is the term for the physical and biological features of an environment?

Which chemical element is primarily responsible for ozone depletion?

What is the term for a period of unusually dry weather?

Which gas is produced as a byproduct of livestock farming?

What is the term for the study of soil?

Which animal is known for its ability to fly?

What is the term for water that is safe to drink?

What is the term for a natural dwelling place of a plant or animal?

Which type of renewable energy comes from organic matter?

What is the term for the slow movement of tectonic plates?

Which type of energy is generated by tides?

Which gas is essential for human respiration?

What is the term for an area where fresh water meets salt water?

What is the term for the study of the Earth\'s rocks?

What is the term for the study of the Earth\'s atmosphere?

Which type of rock is formed from the cooling of magma or lava?

Which type of energy is derived from the heat of the Earth\'s core?

Which gas is released during photosynthesis?

Which gas is used by humans for breathing?

What is the term for the process of turning a gas into a liquid?

What is the primary source of mercury pollution in the environment?

Which gas is used in balloons to make them float?

What is the term for the average weather in a region over time?

What is the term for the study of insects?

What is the name of the process where water changes from a liquid to a gas?

Which animal is known for being a slow mover?

Which light wavelength is mostly absorbed by greenhouse gases?

What is the term for an organism that makes its own food?

Which gas is the second most abundant in the sun?

What is the main component of natural gas?

Which gas is the second most abundant in the atmosphere?

What is the term for a scientist who studies animals?

Which part of the plant is responsible for absorbing water and minerals?

What is the term for the reuse of waste materials?

What is the term for an interaction where one organism benefits and the other is unharmed?

What is the term for an organism that breaks down dead organic matter?

What is the term for the boundary where two air masses meet?

What is the term for the study of the Earth\'s structure?

Which is the largest bird in the world?

Which biome is characterized by permafrost?

Which animal is known for its long neck?

What is the term for the study of the Earth\'s surface features?

Which type of reef is separated from the shore by a lagoon?

What is the term for the process of a liquid turning into a solid?

Which is the largest fish in the world?

What is the name of the treaty aimed at reducing global greenhouse gas emissions?

Which gas makes up approximately 21% of Earth\'s atmosphere?

Which animal is considered a primary consumer?

Which element is found in all organic compounds?

What is the term for the study of the stars and planets?

What is the term for the non-living parts of an ecosystem?

Which process is responsible for the formation of soil?

Which gas is used in fire extinguishers?

What is the term for the process of moving sediment from one place to another?

Which type of forest is found near the equator?

Which type of energy is harnessed from falling water?

What is the name of the supercontinent that existed 200 million years ago?

Which process involves the movement of water from the Earth to the atmosphere?

What is the term for a scientist who studies the weather?

What is the term for the movement of topsoil by wind or water?

What is the term for the breakdown of rocks by physical or chemical means?

Which layer of the atmosphere contains the ozone layer?

What is the term for a mountain with a flat top?

Which planet is known as Earth\'s twin?

What is the term for a large body of ice that moves slowly?

What is the term for the study of the relationships between organisms?

What is the term for the variety of life in a particular habitat?

Which gas is the lightest in the universe?

Which type of energy comes from the sun?

Which bird is often used as a symbol of peace and environmental health?

What is the term for the study of the Earth\'s climate?

What is the term for a group of the same species living in an area?

What is the term for the place where an organism lives?

Which biome receives the least amount of rainfall annually?

Which ecosystem is often referred to as the \'Lungs of the Earth\'?

What is the term for a species at risk of extinction?

Which animal is known for its ability to swim?

Which continent has no permanent residents?

What is the term for the process of changing a solid into a liquid?

Which animal is the largest mammal in the world?

What is the term for the study of the universe?

Which organism is the base of the ocean food chain?

What is the name of the scale used to measure the intensity of hurricanes?

Which animal is known for its hump?

What is the term for the process by which liquid water becomes solid?

What is the term for an organism that lives on or in another organism?

What is the main source of oxygen in the Earth\'s atmosphere?

What is the process of trees releasing water vapor into the air called?

Which gas is found in bubbles?

What is the term for the permanent freezing of soil?

Which forest type is found in cold, northern regions and consists mainly of conifers?

What is the term for the study of the Earth\'s oceans?

What is the term for the study of plants?

Which animal is known as a \'keystone species\' in the African savanna?

What is the term for the release of harmful substances into the environment?

Which is the main acid found in acid rain?

What is the term for the process where a lake becomes over-enriched with nutrients?

What is the term for the number of different species in an area?

What is the term for the study of the stars?

Which element is the main component of coal?

What is the term for the path of energy from one organism to another?

What is the term for the process of using less of a resource?

What is the term for a group of ecosystems with similar climates and organisms?

Which country produces the most wind energy?

What is the term for a mountain with a large opening through which lava erupts?

What is the term for the study of birds?

What is the largest ocean on Earth?

Which is the most abundant metal in the Earth\'s crust?

What is the term for the process of topsoil being washed away?

What is the name of the protective layer around the Earth?

Which process is responsible for the formation of caves?

Which animal is known for its long ears?

What is the term for the process of water falling from the sky?

What is the term for the edge of a tectonic plate?

What is the most common type of debris found in the ocean?

Which animal is known for its black and white stripes?

Which process produces nutrients for plants?

Which is the fastest land animal?

Which gas is responsible for the \'rotten egg\' smell near volcanic vents?

Which is the largest type of big cat in the world?

Which gas is used in light bulbs?

What is the primary cause of the greenhouse effect?

Which layer of the Earth is liquid?

Which gas is the most abundant in Earth\'s atmosphere?

Which state of matter is the Earth\'s inner core?

Which process creates clouds?

Which gas is used by plants?

Which vitamin is known as the \'sunshine vitamin\'?

What is the term for the melting of a glacier?

Which process removes carbon dioxide from the atmosphere?

Which is the most powerful storm on Earth?

Which animal is known for its mane?

Which type of energy is generated by wind?

What is the term for the practice of planting trees?

Which ocean current warms the coast of Western Europe?

Which layer of the Earth\'s crust is the thinnest?

What is the term for the maximum population size an environment can support?

Which layer of soil is the most fertile?

What is the term for the total amount of living tissue in a trophic level?

Which of these is a renewable energy source?

What is the term for the study of the Earth?