Explanation

• “Between” is used when referring to two people or things.
• “Sandwiched between” means being tightly placed in the middle of two things.

Last verified on 26-05-2026

Explanation

• “Than” is used for comparison (taller than, smaller than, faster than).
• After comparative adjective “taller,” we always use “than.”

Last verified on 26-05-2026

Explanation

• A lactometer is used to measure the purity and density (thickness) of milk.
• It checks if milk has been adulterated with water by measuring specific gravity.
• Works on the principle of buoyancy.
• Pure milk specific gravity: 1.028–1.032 at 15°C

Last verified on 16-03-2026

Explanation

• Gamma rays have the highest penetrating power among these particles.
• Due to their lack of mass and charge.
• It allowing them to pass through most materials.

Additional information:

• Alpha radiation has the lowest penetrating power.

Last verified on 12-04-2026

Explanation

• Auxiliary verbs are helping verbs in English grammar.
• They are used with main verbs to form different tenses and structures.
• They help show tense, voice, mood, or aspect of a sentence.
• Common examples include is, am, are, was, have, has, do, will.

Last verified on 23-05-2026

Explanation

• Species is the basic unit of classification.
• Species are a group of organisms that are morphologically similar and can interbreed.
• Classification system as proposed by Linnaeus.

These groups or levels are:

1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus 
7. Species

Species is the smallest unit of classification.

Last verified on 20-05-2026

Explanation

• Metals allow electricity to pass through them easily.
• Among all metals, silver has the highest electrical conductivity.
• Copper and gold are also very good conductors.
• Silver is widely used in high-precision electrical applications.
• Copper is commonly used in wiring due to cost-effectiveness.

Last verified on 16-05-2026

Explanation

• The longest cell in the human body is the nerve cell (neuron).
• Some neurons can extend up to 1 meter in length.
• They transmit impulses throughout the body.

Additional information:

• The smallest cell in the human body is the sperm cell (spermatozoon).
• It is measures approximately 4–5 micrometers (µm) in length.
• It is mainly consisting of a nucleus and a tail.

Last verified on 23-04-2026

Explanation

• In formal grammar, the pronoun after “as…as” is the subject of an implied verb → “as fast as I (can run)”.
• Therefore, the subjective case “I” is correct.

Last verified on 01-04-2026

Explanation

• The scientific study of different aspects of plants is called botany.
• Plant biology or Phytology, is the science of plant life and a branch of biology.

Additional information:

• Study of soil is called Pedology
• Study of grasses is called Agrostology
• Study of food is called Bromatology
• Study of cells is called Cytology
• Study of animals is called Zoology
• Study of skin is called Dermatology
• Study of insects is called Entomology
• Study of eggs is called Oology
• Study of earthquakes is called Seismology
• Study of viruses is called Virology
• Study of bacteria is called Bacteriology
• Study of the heart is called Cardiology 
• Study of fermentation is called Zymology

Last verified on 31-03-2026