Science — English

What is the basic structural unit of nuclei acids?
The basic structural unit of nucleic acids is the nucleotide. Nucleotides are composed of three components: a sugar, a phosphate...
Added: 19 Jan 2000
Updated: 20 Nov 2025
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Which gas forms the majority of the Earth's atmosphere?
The gas that forms the majority of the Earth's atmosphere is nitrogen, comprising about 78% of the atmosphere by volume....
Added: 19 Jan 2000
Updated: 07 Nov 2025
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What is the scientific term for the force that opposes motion between two surfaces?
The scientific term for the force that opposes motion between two surfaces is friction. Friction acts in the opposite direction...
Added: 19 Jan 2000
Updated: 07 Nov 2025
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What is the force that holds the nucleus of an atom together?
The force that holds the nucleus of an atom together is the strong nuclear force. This fundamental force binds protons...
Added: 19 Jan 2000
Updated: 21 Nov 2025
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What is the process by which fertile land becomes desert called?
The process by which fertile land becomes desert is called desertification. This phenomenon is often caused by a combination of...
Added: 19 Jan 2000
Updated: 28 Nov 2025
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What element is needed for photosynthesis to occur in plants?
The element needed for photosynthesis to occur in plants is carbon dioxide (CO2). During photosynthesis, plants absorb CO2 from the...
Added: 19 Jan 2000
Updated: 16 Nov 2025
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What is the environmental science term for a community and its physical environment interacting?
The environmental science term for a community and its physical environment interacting is an ecosystem. Ecosystems encompass living organisms, their...
Added: 19 Jan 2000
Updated: 02 Nov 2025
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What is the main organ responsible for pumping blood throughout the body?
The main organ responsible for pumping blood throughout the body is the heart. This muscular organ contracts rhythmically to circulate...
Added: 19 Jan 2000
Updated: 27 Nov 2025
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What is the term for organisms that break down organic material for energy?
The term for organisms that break down organic material for energy is decomposers. These organisms, which include bacteria and fungi,...
Added: 19 Jan 2000
Updated: 27 Nov 2025
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What is the scientific study of the earth's physical structure called?
The scientific study of the Earth's physical structure is called geology. This field encompasses the examination of Earth's materials, including...
Added: 19 Jan 2000
Updated: 24 Nov 2025
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What is the name of the element that is essential for cellular respiration?
The name of the element that is essential for cellular respiration is oxygen. Oxygen is crucial for the process in...
Added: 19 Jan 2000
Updated: 15 Nov 2025
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What is the effect of friction on motion?
The effect of friction on motion is that it opposes the direction of movement, thereby slowing down the object. Friction...
Added: 19 Jan 2000
Updated: 23 Nov 2025
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What do we call the study of human societies and their interaction with the environment?
The study of human societies and their interaction with the environment is called anthropology or more specifically, environmental anthropology. This...
Added: 19 Jan 2000
Updated: 04 Nov 2025
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What is the main cause of ocean acidification?
The main cause of ocean acidification is the increased absorption of carbon dioxide (CO2) from the atmosphere into ocean waters....
Added: 19 Jan 2000
Updated: 01 Dec 2025
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What is the scientific term for the process of burning in the presence of oxygen?
The scientific term for the process of burning in the presence of oxygen is combustion. This exothermic reaction releases energy...
Added: 19 Jan 2000
Updated: 05 Nov 2025
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What is the state of matter that has both a definite volume and shape?
The state of matter that has both a definite volume and shape is called a solid. In solids, particles are...
Added: 19 Jan 2000
Updated: 26 Nov 2025
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What is the natural satellite of Earth called?
The natural satellite of Earth is called the Moon. It orbits the Earth and plays a crucial role in various...
Added: 19 Jan 2000
Updated: 14 Nov 2025
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What is the branch of science that studies the composition of matter?
The branch of science that studies the composition of matter is chemistry. This field focuses on the composition, structure, properties,...
Added: 19 Jan 2000
Updated: 28 Nov 2025
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What theory posits that the continents were once joined together before drifting apart?
The theory that posits the continents were once joined together before drifting apart is called plate tectonics. This scientific framework...
Added: 19 Jan 2000
Updated: 11 Nov 2025
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What is the scientific name for the process of water purification by plants?
The scientific name for the process of water purification by plants is phytoremediation. This natural method leverages the capabilities of...
Added: 19 Jan 2000
Updated: 15 Nov 2025
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