Science — English

What does the term "endangered species" refer to?
The term "endangered species" refers to a group of organisms that are at risk of becoming extinct. These species face...
Added: 18 Jan 2000
Updated: 11 Nov 2025
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What is the term for a substance that speeds up a chemical reaction?
A substance that speeds up a chemical reaction is termed a catalyst. Catalysts function by lowering the activation energy required...
Added: 18 Jan 2000
Updated: 11 Nov 2025
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Which type of rock is formed from the cooling of magma?
The type of rock formed from the cooling of magma is known as igneous rock. Igneous rocks can form either...
Added: 18 Jan 2000
Updated: 15 Nov 2025
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What type of force is responsible for holding electrons in their orbit around the nucleus?
The type of force responsible for holding electrons in their orbit around the nucleus is the electromagnetic force. This fundamental...
Added: 18 Jan 2000
Updated: 07 Nov 2025
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What do we call the outer layer of the Earth?
The outer layer of the Earth is called the crust. It is composed of a variety of rocks, minerals, and...
Added: 18 Jan 2000
Updated: 05 Nov 2025
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What is the unit of measure for radioactivity?
The unit of measure for radioactivity is the Becquerel (Bq). One Becquerel is defined as one decay event per second...
Added: 18 Jan 2000
Updated: 14 Nov 2025
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What process is used to extract metal from its ore?
The process used to extract metal from its ore is called mineral processing or metallurgy. This involves methods such as...
Added: 18 Jan 2000
Updated: 01 Dec 2025
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What type of symmetry do most starfish exhibit?
Most starfish exhibit radial symmetry. This type of symmetry means that their body can be divided into similar halves by...
Added: 18 Jan 2000
Updated: 09 Nov 2025
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Which materials are usually considered insulators?
Materials that are usually considered insulators include substances such as rubber, glass, plastic, and air. These materials resist the flow...
Added: 18 Jan 2000
Updated: 13 Nov 2025
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What is the second law of thermodynamics?
The second law of thermodynamics states that in an isolated system, the total entropy, or disorder, tends to increase over...
Added: 18 Jan 2000
Updated: 18 Nov 2025
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What is the primary agent of chemical weathering?
The primary agent of chemical weathering is water, particularly when it is slightly acidic due to dissolved carbon dioxide forming...
Added: 18 Jan 2000
Updated: 13 Nov 2025
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What phenomenon occurs when light waves spread out after passing through a narrow slit?
The phenomenon that occurs when light waves spread out after passing through a narrow slit is known as diffraction. Diffraction...
Added: 18 Jan 2000
Updated: 09 Nov 2025
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What is the scientific study of behavior and mental processes known as?
The scientific study of behavior and mental processes is known as psychology. Psychology examines various aspects of human and animal...
Added: 18 Jan 2000
Updated: 22 Nov 2025
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What is the role of mitochondria in a cell?
The role of mitochondria in a cell is primarily related to energy production. Often referred to as the "powerhouses" of...
Added: 18 Jan 2000
Updated: 20 Nov 2025
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What type of mutation involves a change in a single nucleotide?
A type of mutation that involves a change in a single nucleotide is referred to as a point mutation. These...
Added: 18 Jan 2000
Updated: 06 Nov 2025
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Who is known as the father of modern genetics?
The father of modern genetics is Gregor Mendel. Mendel was an Augustinian monk who conducted foundational experiments with pea plants...
Added: 18 Jan 2000
Updated: 03 Nov 2025
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What is the term for the study of interactions between organisms and their environment?
The study of interactions between organisms and their environment is known as ecology. This field examines various aspects, including species...
Added: 18 Jan 2000
Updated: 21 Nov 2025
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What is the importance of keystone species in an ecosystem?
Keystone species play a crucial role in maintaining the structure and health of an ecosystem. They have a disproportionately large...
Added: 18 Jan 2000
Updated: 17 Nov 2025
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Which planet is known for having the most extensive ring system?
The planet known for having the most extensive ring system is Saturn. Saturn's rings are composed primarily of ice particles,...
Added: 18 Jan 2000
Updated: 05 Nov 2025
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What is the relationship between biodiversity and ecosystem resilience?
Biodiversity and ecosystem resilience are closely linked. Biodiversity refers to the variety of life forms within a given ecosystem, while...
Added: 18 Jan 2000
Updated: 29 Nov 2025
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