Science — English

What is the primary reason for seasons on Earth?
The primary reason for seasons on Earth is its axial tilt and orbit around the Sun. As Earth revolves, different...
Added: 19 Jan 2000
Updated: 24 Nov 2025
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What characteristic defines mammals?
A defining characteristic of mammals is the presence of mammary glands, which produce milk to nourish their young. This trait...
Added: 19 Jan 2000
Updated: 07 Nov 2025
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What is the primary function of the ribosome in a cell?
The primary function of the ribosome in a cell is to synthesize proteins by translating messenger RNA (mRNA) into polypeptide...
Added: 19 Jan 2000
Updated: 15 Nov 2025
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What is the function of the respiratory system?
The function of the respiratory system is to facilitate the exchange of gases between the body and the environment. Its...
Added: 19 Jan 2000
Updated: 21 Nov 2025
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Which scientist is recognized for formulating the laws of motion and universal gravitation?
The scientist recognized for formulating the laws of motion and universal gravitation is Isaac Newton. His seminal work, "Philosophiæ Naturalis...
Added: 19 Jan 2000
Updated: 13 Nov 2025
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What is the impact of pollution on ecosystems?
The impact of pollution on ecosystems can be severe, leading to habitat degradation, loss of biodiversity, and adverse health effects...
Added: 19 Jan 2000
Updated: 25 Nov 2025
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What does the nucleus of an atom contain?
The nucleus of an atom contains two primary components: protons and neutrons. Protons are positively charged particles, while neutrons carry...
Added: 19 Jan 2000
Updated: 06 Nov 2025
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What is the role of the hypothalamus in thermoregulation?
The role of the hypothalamus in thermoregulation is to maintain the body's internal temperature by acting as a control center...
Added: 19 Jan 2000
Updated: 20 Nov 2025
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What phenomenon occurs when a wave bends around an obstacle?
The phenomenon that occurs when a wave bends around an obstacle is known as diffraction. This bending of waves...
Added: 19 Jan 2000
Updated: 07 Nov 2025
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What is the difference between a hypothesis and a theory?
The difference between a hypothesis and a theory lies in their levels of scientific validation. A hypothesis is a testable...
Added: 19 Jan 2000
Updated: 08 Nov 2025
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What is the term for the movement of water across a semipermeable membrane?
The term for the movement of water across a semipermeable membrane is called osmosis. This process occurs when water molecules...
Added: 19 Jan 2000
Updated: 23 Nov 2025
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What factor is crucial for maintaining biodiversity?
A crucial factor for maintaining biodiversity is habitat preservation. Biodiversity refers to the variety of life on Earth, including species...
Added: 19 Jan 2000
Updated: 02 Nov 2025
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Which law states that energy cannot be created or destroyed?
The law that states energy cannot be created or destroyed is known as the Law of Conservation of Energy. This...
Added: 19 Jan 2000
Updated: 11 Nov 2025
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What is the primary component of nucleic acids?
The primary component of nucleic acids, such as DNA and RNA, is the nucleotide. Nucleotides consist of three key parts:...
Added: 19 Jan 2000
Updated: 22 Nov 2025
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What is the chemical process by which plants use carbon dioxide and water to produce glucose?
The chemical process by which plants use carbon dioxide and water to produce glucose is known as photosynthesis. This process...
Added: 19 Jan 2000
Updated: 18 Nov 2025
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What phenomenon causes the Earth's seasons?
The phenomenon that causes the Earth's seasons is the tilt of Earth's axis relative to its orbit around the Sun....
Added: 19 Jan 2000
Updated: 09 Nov 2025
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In which structure of the cell does protein synthesis occur?
Protein synthesis occurs in the ribosome, a cellular structure found in both prokaryotic and eukaryotic cells. Ribosomes can be found...
Added: 19 Jan 2000
Updated: 03 Nov 2025
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What is the primary role of the motor cortex?
The primary role of the motor cortex is to oversee the planning, control, and execution of voluntary movements. Located in...
Added: 19 Jan 2000
Updated: 24 Nov 2025
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What are the products of photosynthesis?
The primary products of photosynthesis are glucose and oxygen. In this process, plants convert carbon dioxide and water using light...
Added: 19 Jan 2000
Updated: 03 Nov 2025
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What is the most commonly used scale to measure earthquake magnitude?
The most commonly used scale to measure earthquake magnitude is the Richter scale. Developed by Charles F. Richter in 1935,...
Added: 19 Jan 2000
Updated: 18 Nov 2025
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