G.K.Test (Science) - 4

Soyabean is exceptionally rich in protein (~40% by weight), containing all essential amino acids, making it a complete protein source. This is why it's called the 'meat of the field' or 'poor man's meat'. While soy contains vitamins and minerals, its protein content is what distinguishes it from other plant sources.

Option 2 is the correct answer.

  Option (4) is the correct answer.

Option (1) is the correct answer.

 Option (2) is the correct answer.

Sound cannot travel through vacuum.

Au is the chemical symbol for gold, derived from the Latin word 'aurum'. Gold is a noble metal known for its yellow luster, resistance to corrosion, and historical use in currency and jewelry. Silver (Ag), Copper (Cu), and Aluminium (Al) each have their own distinct symbols.

Pesticides are chemical substances specifically designed to kill, repel, or control pests including insects, rodents, weeds, and other organisms that damage crops or spread disease. Herbicides kill weeds, fungicides kill fungi, and bactericides kill bacteria - but only pesticides have the broad function of insect and pest control as described in the question.

The thyroid gland primarily produces thyroxine (T4) and triiodothyronine (T3), collectively called thyroid hormones. Insulin is produced by the pancreas, while estrogen and progesterone are produced by the ovaries.

DNA stands for Deoxyribonucleic Acid. It is the molecule that carries genetic instructions for the development, functioning, growth, and reproduction of all known organisms.

Bauxite is the primary ore of aluminium. Haematite is an ore of iron, while calcite is a carbonate mineral.

Autotrophic organisms, such as plants, can synthesize their own food using sunlight, water, and carbon dioxide. Heterotrophs must consume other organisms for energy.

The Moon completes one orbit around the Earth in approximately 27.3 days, which is commonly rounded to 28 days in general contexts.

The chemical symbol for sodium is Na, which is derived from the Latin word Natrium. Argentum is silver, and Kalium is potassium.

Ductility is the physical property of a metal that allows it to be drawn into thin wires. Malleability refers to the ability to be hammered into thin sheets.

Aluminium is the most abundant metal in the Earth's crust, making up about 8 percent of its weight.

Penicillin is a group of antibiotics originally derived from Penicillium fungi, used to treat various bacterial infections including pneumonia and syphilis.

Methane (CH4) is the primary component of natural gas, typically accounting for 70 to 90 percent of its composition.

In an ecosystem, green plants are called producers because they produce their own food through photosynthesis, forming the base of the food chain.

Heat energy is transferred by radiation in the form of electromagnetic waves.

The ozone layer in the stratosphere absorbs the majority of the Sun's harmful ultraviolet (UV) radiation, protecting life on Earth.

The Large Hadron Collider (LHC) uses superconducting magnets cooled by liquid helium to maintain a temperature of 1.9 Kelvin, which is often approximated as 3 Kelvin in general contexts.

Calcium ions are essential for blood clotting, muscle contraction, nerve impulse transmission, and maintaining a regular heartbeat.

Correct answer is (2).