Science — English

What scale is used to measure the hardness of minerals?
The scale used to measure the hardness of minerals is the Mohs scale. This scale rates minerals from 1 to...
Added: 22 Feb 2000
Updated: 01 Nov 2025
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What is the main component of DNA?
The main component of DNA is the nucleotide, which consists of three parts: a phosphate group, a deoxyribose sugar, and...
Added: 22 Feb 2000
Updated: 24 Nov 2025
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What is the smallest unit of life that can exist independently?
The smallest unit of life that can exist independently is called a cell. Cells are the basic structural and functional...
Added: 22 Feb 2000
Updated: 18 Nov 2025
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In biology, what is a mutation?
In biology, a mutation refers to a change in the DNA sequence of an organism's genome. Mutations can result from...
Added: 22 Feb 2000
Updated: 25 Nov 2025
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Which law explains the relationship between the pressure and volume of a gas?
The law that explains the relationship between the pressure and volume of a gas is known as Boyle's Law. This...
Added: 22 Feb 2000
Updated: 02 Nov 2025
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What is meant by the term "biodiversity"?
The term "biodiversity" refers to the variety and variability of life forms within a specific environment or on Earth as...
Added: 22 Feb 2000
Updated: 24 Nov 2025
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What is the primary gas produced by respiration?
The primary gas produced by respiration is carbon dioxide. During cellular respiration, organisms convert glucose and oxygen into energy (in...
Added: 22 Feb 2000
Updated: 10 Nov 2025
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What process describes the change from a liquid to a gas?
The process that describes the change from a liquid to a gas is called evaporation or boiling, depending on the...
Added: 22 Feb 2000
Updated: 25 Nov 2025
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What is the difference between an asteroid and a comet?
The difference between an asteroid and a comet lies primarily in their composition and origin. Asteroids are rocky, metallic bodies...
Added: 22 Feb 2000
Updated: 29 Nov 2025
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What is the term for an organism's genetic makeup?
The term for an organism's genetic makeup is known as its genotype. The genotype encompasses all the alleles present in...
Added: 22 Feb 2000
Updated: 19 Nov 2025
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In which state of matter do particles have the most energy?
In the state of matter known as plasma, particles have the most energy. Plasma consists of ionized gas particles that...
Added: 22 Feb 2000
Updated: 08 Nov 2025
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What is the primary function of chlorophyll in photosynthesis?
The primary function of chlorophyll in photosynthesis is to absorb light energy from the sun. This green pigment, found in...
Added: 22 Feb 2000
Updated: 09 Nov 2025
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What form of energy is associated with the motion of an object?
The form of energy associated with the motion of an object is known as kinetic energy. It is calculated using...
Added: 22 Feb 2000
Updated: 10 Nov 2025
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What particle in an atom has a positive charge?
The particle in an atom that has a positive charge is the proton. Protons are located in the atom's nucleus,...
Added: 22 Feb 2000
Updated: 01 Dec 2025
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What is the process called where plants convert sunlight into food?
The process by which plants convert sunlight into food is known as photosynthesis. During this process, plants, algae, and some...
Added: 22 Feb 2000
Updated: 19 Nov 2025
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What layer of the Earth lies directly below the crust?
The layer of the Earth that lies directly below the crust is called the mantle. The mantle is composed of...
Added: 22 Feb 2000
Updated: 30 Nov 2025
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In physics, what is a force?
In physics, a force is defined as an interaction that can cause an object to accelerate, change its velocity, or...
Added: 22 Feb 2000
Updated: 26 Nov 2025
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Which branch of science focuses on the study of matter and its interactions?
The branch of science that focuses on the study of matter and its interactions is chemistry. This field explores the...
Added: 22 Feb 2000
Updated: 26 Nov 2025
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What is the main function of ribosomes in a cell?
The main function of ribosomes in a cell is to synthesize proteins. Ribosomes serve as the site of translation, where...
Added: 22 Feb 2000
Updated: 20 Nov 2025
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What is the process by which living organisms convert nutrients into energy?
The process by which living organisms convert nutrients into energy is known as cellular respiration. This metabolic process takes place...
Added: 22 Feb 2000
Updated: 21 Nov 2025
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