Science — English

What is the main energy source for most ecosystems?
The main energy source for most ecosystems is **solar energy**. Plants, through the process of photosynthesis, convert sunlight into chemical...
Added: 15 Apr 2000
Updated: 11 Nov 2025
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What are the two primary greenhouse gases that contribute to global warming?
The two primary greenhouse gases contributing to global warming are **carbon dioxide (CO2)** and **methane (CH4)**. CO2 is released through...
Added: 15 Apr 2000
Updated: 27 Nov 2025
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What is an adaptation found in animals that live in cold climates?
An adaptation found in animals living in cold climates is **insulation**, which often takes the form of thick fur, blubber,...
Added: 15 Apr 2000
Updated: 03 Nov 2025
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What is the order of the steps in the scientific method?
The steps in the scientific method typically follow this order: 1) Observation, 2) Question, 3) Hypothesis, 4) Experiment, 5) Analysis,...
Added: 15 Apr 2000
Updated: 04 Nov 2025
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What aspect of heavy metals makes them particularly hazardous to ecosystems?
The aspect of heavy metals that makes them particularly hazardous to ecosystems is their toxicity and persistence in the environment....
Added: 15 Apr 2000
Updated: 16 Nov 2025
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What do we call the total number of different species in a specific area?
The total number of different species in a specific area is referred to as species richness. This biodiversity metric reflects...
Added: 15 Apr 2000
Updated: 27 Nov 2025
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What is the function of the epidermis in plants?
The function of the epidermis in plants is primarily to protect against environmental stresses and reduce water loss. As the...
Added: 15 Apr 2000
Updated: 25 Nov 2025
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What is the role of a control group in scientific experiments?
The role of a control group in scientific experiments is to provide a baseline for comparison against the experimental group....
Added: 15 Apr 2000
Updated: 20 Nov 2025
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What type of diagram is used to show the flow of energy in an ecosystem?
The type of diagram used to show the flow of energy in an ecosystem is called a food pyramid or...
Added: 15 Apr 2000
Updated: 15 Nov 2025
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What is the impact of habitat fragmentation on biodiversity?
The impact of habitat fragmentation on biodiversity can be significant, leading to decreased populations and increased extinction rates. When habitats...
Added: 15 Apr 2000
Updated: 14 Nov 2025
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What is the focus of studies in paleontology?
The focus of studies in paleontology is the investigation of fossils to understand the history of life on Earth. Paleontologists...
Added: 15 Apr 2000
Updated: 01 Dec 2025
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What is the main function of antibodies in the immune response?
The main function of antibodies in the immune response is to identify and neutralize foreign invaders, such as bacteria and...
Added: 15 Apr 2000
Updated: 25 Nov 2025
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What is the term for a type of decay that involves the emission of a proton or neutron from an atomic nucleus?
The term for a type of decay that involves the emission of a proton or neutron from an atomic nucleus...
Added: 15 Apr 2000
Updated: 22 Nov 2025
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Which type of adaptation allows animals to thrive in extreme temperatures?
The type of adaptation that allows animals to thrive in extreme temperatures is referred to as physiological adaptation. These adaptations...
Added: 15 Apr 2000
Updated: 25 Nov 2025
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What is the relationship between wavelength and frequency in the electromagnetic spectrum?
The relationship between wavelength and frequency in the electromagnetic spectrum is inversely proportional. As the wavelength increases, the frequency decreases,...
Added: 15 Apr 2000
Updated: 20 Nov 2025
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What condition involves excessive exposure to ultraviolet light?
The condition that involves excessive exposure to ultraviolet light is known as sunburn. It occurs when skin cells are damaged...
Added: 15 Apr 2000
Updated: 03 Nov 2025
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Which physical property describes the amount of matter contained in an object?
The physical property that describes the amount of matter contained in an object is called mass. Mass is a fundamental...
Added: 15 Apr 2000
Updated: 23 Nov 2025
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What is the study of the functions and mechanisms of living organisms?
The study of the functions and mechanisms of living organisms is known as physiology. This scientific field explores how different...
Added: 15 Apr 2000
Updated: 01 Nov 2025
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What is the main factor that determines a climate zone?
The main factor that determines a climate zone is typically latitude, which affects the amount of solar radiation received. Different...
Added: 15 Apr 2000
Updated: 03 Nov 2025
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What is the effect of caffeine on the human body at a cellular level?
Caffeine affects the human body at a cellular level primarily by acting as a stimulant to the central nervous system....
Added: 15 Apr 2000
Updated: 04 Nov 2025
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