Explanation

• Also Known As: Growth Hormone (GH)
• Produced By: Pituitary gland
• Function: Stimulates normal growth of bones, muscles, and tissues

Additional information:

• Deficiency can lead to dwarfism, excess can cause gigantism
• Regulates protein synthesis and metabolism in the body

Last verified on 08-02-2026

Explanation

• Examples: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn)
• Reason for Inactivity: Complete valence electron shell → chemically stable

Additional information:

• Rarely form compounds, mostly inert
• Used in lighting (Neon lights), welding (Argon), and as inert environments in laboratories

Last verified on 08-02-2026

Explanation

• Cause of Air Pollution: Vehicle emissions, industrial smoke, burning fossil fuels
• Effective Solution: Planting more trees absorbs CO₂ and releases oxygen

Additional information:

• Trees also trap dust, smoke, and harmful gases

Last verified on 08-02-2026

Explanation

• Condition: Kidneys fail to filter waste from blood (renal failure)
• Treatment: Dialysis removes waste and excess fluids from the blood artificially

Types of Dialysis:

• Hemodialysis: Blood filtered through a machine
• Peritoneal Dialysis: Uses lining of the abdomen to filter blood

Last verified on 08-02-2026

Explanation

• Protium (¹H₁): 0 neutrons, 1 proton
• Deuterium (²H₁): 1 neutron, 1 proton
• Tritium (³H₁): 2 neutrons, 1 proton

All have 1 proton and 1 electron, differ only in neutron number

Last verified on 08-02-2026

Explanation

• When the angle θ between force (F) and displacement (d) is 90°, cos90° = 0.
• Therefore, Work Done (W) = 0.

Additional information:

• Example: Carrying a bag horizontally while the force is vertical → no work is done.
• Work is maximum when force is along the displacement (θ = 0°).

Last verified on 08-02-2026

Explanation

• Location: Back of the brain
• Primary Function: Responsible for processing visual information
• Effect of Damage: Leads to partial or complete loss of vision, visual hallucinations, or difficulty recognizing objects

Last verified on 08-02-2026

Explanation

• Cause: Primarily due to excess greenhouse gases like CO₂, CH₄, and N₂O from human activities.
• Effects: Rising temperatures, melting glaciers, extreme weather, and sea-level rise.

Last verified on 08-02-2026

Explanation

• OPEC Full Form: Organization of the Petroleum Exporting Countries
  • Founded: 14 September 1960, Baghdad
  • Headquarters: Vienna, Austria
  • Members: 15 member countries
  • Purpose: Coordinates oil production policies among member countries to stabilize global oil markets

Last verified on 08-02-2026

Explanation

• Headquarters: Addis Ababa, Ethiopia
• Launch Date: 9 July 2002, Durban, South Africa
• Members: 55 member states, 9 observer states
• Purpose: Replaced the Organisation of African Unity (OAU) to promote unity, development, and peace in Africa

Additional information:

• OAU Background: Established on 25 May 1963 in Addis Ababa by 32 signatory governments
• OAU Disbanded: 9 July 2002

Last verified on 08-02-2026