General Science Questions and Answers – Page 5

The concept tested here leads specifically to Copper. Copper is used the most because it has very high electrical conductivity and is cost-effective. Aluminum is also used in some cases (such as power transmission lines), but copper is more commonly used in household wiring. In “Which metal used in wires?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Silver, Aluminium and Iron are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Copper and with the explanatory fact above.

Option C, Leaf, matches the evidence in the stem. Leaves contain chlorophyll which helps in making food using sunlight. In “Which part makes food in plants?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Stem, Flower and Root are legitimate scientific terms, but each belongs to a different function, property, material or context. A useful verification is to state the definition in one sentence and ask whether the selected option satisfies every part of it. For revision, connect the stem with Leaf and with the explanatory fact above.

The defining scientific property identifies CO2. Soda contains dissolved carbon dioxide gas. In “Which gas is in soda?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Oxygen, Nitrogen and Hydrogen are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with CO2 and with the explanatory fact above.

Newton is the scientifically supported answer. Newton is the SI unit of force. Physics requires attention to the measured quantity, governing principle and unit. In “Which unit of force?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Joule, Watt and Pascal are legitimate scientific terms, but each belongs to a different function, property, material or context. If the topic involves the human body, check organ and function; in chemistry, check composition and reaction; in physics, check quantity and unit; and in environmental science, check layer and process. For revision, connect the stem with Newton and with the explanatory fact above.

The concept tested here leads specifically to Phloem. Phloem transports prepared food in plants. In “Which tissue transports food?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Cortex, Xylem and Cambium are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Phloem and with the explanatory fact above.

Option C, Insulin, matches the evidence in the stem. Insulin helps control blood sugar level. In “Which hormone controls sugar?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Adrenaline, Estrogen and Thyroxine are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Insulin and with the explanatory fact above.

The defining scientific property identifies Small intestine. Most nutrients are absorbed in the small intestine. In “Which part absorbs nutrients?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Large intestine, Stomach and Esophagus are legitimate scientific terms, but each belongs to a different function, property, material or context. A useful verification is to state the definition in one sentence and ask whether the selected option satisfies every part of it. For revision, connect the stem with Small intestine and with the explanatory fact above.

Oxygen is the scientifically supported answer. In “Which gas supports burning?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Nitrogen, Carbon dioxide and Hydrogen are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Oxygen and with the explanatory fact above.

The concept tested here leads specifically to Lactic acid. Lactic acid is produced when lactic-acid bacteria ferment lactose in milk, lowering pH and contributing to curd formation and sour taste. A common name, formula, acid-base character or periodic position provides a stronger basis than superficial similarity between substances. In “Which acid is chiefly responsible for the sour taste of curd?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Oxalic acid, Citric acid and Acetic acid are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Lactic acid and with the explanatory fact above. This builds reliable recall for SSC, Railway, State exams and other General Science tests while preserving conceptual understanding.

Option C, Mercury, matches the evidence in the stem. In “Which metal is liquid?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Copper, Aluminium and Iron are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Mercury and with the explanatory fact above.