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Question 3706

A substance used in the fire extinguisher under the trade name of Pyrene is:

ACarbon dioxide

BChloroform

CCarbon tetrachloride

DBleaching powder

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C. Carbon tetrachlorideExplanation not yet available.

Question 3705

To an astronaut in space, the sky appears to be:

ARed

BWhite

CDark

DBlue

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C. DarkExplanation not yet available.

Question 3704

The study of hair and its diseases is known as:

APenology

BTrichology

CPenology

DPomology

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B. TrichologyExplanation: Trichology is derived from the Greek word “trikhos”, meaning hair. It is a specialized field within dermatology that focuses on the structure, function, and diseases of hair and scalp. Trichologists diagnose and treat conditions such as hair loss (alopecia), dandruff, scalp infections, and hair shaft disorders. Common Hair Disorders Studied in Trichology: Alopecia: Hair loss due to genetics, stress, or autoimmune disorders. Dandruff (Seborrheic dermatitis): Scalp condition causing flaking and itching. Tinea capitis: Fungal infection of the scalp (ringworm).

Question 3696

Volumetric method for determination of fat % of milk is:

AWaste fall balance

BSoxhlet method

CRichmond sliding method

DGarber method

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D. Garber methodExplanation not yet available.

Question 3695

Thiamine deficiency or beriberi, refers to the lack of:

Avitamin K

Bvitamin B1

Cvitamin C

Dnicotine

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B. vitamin B1Explanation: Thiamine (Vitamin B₁) is a water-soluble vitamin essential for carbohydrate metabolism and proper functioning of the nervous system. Its deficiency causes beriberi, which manifests as muscle weakness, loss of appetite, fatigue, and nerve degeneration. There are two main types of beriberi: dry beriberi (affecting nerves) and wet beriberi (affecting the heart). Rich Sources: Whole grains, legumes, nuts, meat, eggs, and yeast.

Question 3694

Plants prepare their food by:

Aphotosynthesis

Bcarbohydrolysis

Cmetabolic synthesis

Dphotorespiration

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A. photosynthesisExplanation: Photosynthesis is the process by which green plants, algae, and some bacteria use sunlight to convert carbon dioxide (CO₂) and water (H₂O) into glucose (C₆H₁₂O₆) and oxygen (O₂). This process takes place in the chloroplasts of plant cells, which contain the green pigment chlorophyll that captures solar energy. Chemical Equation: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ Thus, plants are known as autotrophs because they produce their own food using light energy — a process vital for sustaining all life on Earth.

Question 3693

Which of the following animals is carnivorous?

AElephant

BHorse

CRhinoceros

DTiger

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D. TigerExplanation: A carnivore is an animal that primarily eats the flesh of other animals. The tiger (Panthera tigris) is a true carnivore and an apex predator in its ecosystem. It has sharp canines and retractable claws adapted for hunting and tearing flesh. Tigers play a vital role in maintaining the ecological balance by controlling herbivore populations in forests.

Question 3692

If a sample of soil is found to have a pH value of 8.25, it is:

Aacidic

Bneutral

Calkaline

DNone of the above

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C. alkalineExplanation not yet available.

Question 3684

Olive ridley is related to:

Aturtle

Bcease fire violations

Cterrorist killings

Dmigratory bird

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A. turtleExplanation: The Olive Ridley turtle (Lepidochelys olivacea) is the smallest and most abundant species of sea turtle found primarily in warm and tropical waters, including the Indian Ocean. It is named for the olive color of its shell. These turtles are famous for their unique mass nesting phenomenon known as “arribada”, where thousands of females come ashore simultaneously to lay eggs. In India, large nesting sites are found along the coast of Odisha, especially at Gahirmatha Beach and the Rushikulya River mouth.

Question 3682

dolomite is used in which field?

ASoil conditioner

BPasteurization

CDynamite

DSynthetic rubber

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A. Soil conditionerExplanation not yet available.

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Science

A substance used in the fire extinguisher under the trade name of Pyrene is:

To an astronaut in space, the sky appears to be:

The study of hair and its diseases is known as:

Volumetric method for determination of fat % of milk is:

Thiamine deficiency or beriberi, refers to the lack of:

Plants prepare their food by:

Which of the following animals is carnivorous?

If a sample of soil is found to have a pH value of 8.25, it is:

Olive ridley is related to:

dolomite is used in which field?

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