Explanation

 The Baltic States are a geopolitical term for three countries in Northern Europe:

1. Estonia,
2. Latvia
3. Lithuania

All three countries are members of NATO, the European Union, the Eurozone, and the OECD.

The term Baltic stems from the name of the Baltic Sea 

Explanation

"Equinox"  means Equal duration of day and night.

The time or date (twice each year) at which the sun crosses the celestial equator 

During the equinoxes, solar declination is 0°

The September equinox is called the autumnal or fall equinox on 23 September

The March equinox is called the vernal or spring equinox on 19 March or as late as 21 March

Explanation

• Compounds with the same molecular formula but different arrangements of atoms are called isomers.
• Isomers can have different chemical and physical properties despite having the same number of atoms.

• Additional information:
  • Example of isomers: C₂H₆O → Ethanol (CH₃CH₂OH) and Dimethyl ether (CH₃OCH₃)
  • Isomerism is classified into structural isomers and stereoisomers.

Explanation

• The services sector is the largest contributor to Pakistan’s GDP.
• It accounting for around 58% of the total GDP.
• Agriculture contributes about 23%.
• Industry/manufacturing contributes around 20%.
  

Additional information:

• Services include finance, transport, education, health, and IT.
• Growth in services reflects urbanization and modernization of the economy.

Last verified on 19-01-2026

Explanation

• The range is the difference between the maximum and minimum values in a data set.
• It shows the spread or dispersion of the data.
• Formula: Range = Maximum value − Minimum value

Additional information:

• Example Data Set: 4, 7, 10, 15, 20 → Range = 20 − 4 = 16

Other Measures of Central Tendency:

• Mean → Average of values
• Mode → Most frequent value
• Median → Middle value

Last verified on 19-01-2026

Explanation

• Sunlight is a good source of vitamin D.
• When our skin is exposed to sunlight, it produces vitamin D, 
• It is essential for bone health, immune function, and the regulation of calcium levels in the blood.
• Deficiency of Vitamin D results in Rickets.

Explanation

The largest planet in our solar system is Jupiter

Additional information related Jupitor

• It is the 5th planet in our solar system.
• The planet in the solar system with the maximum number of moons is Jupiter.
• Jupiter has 79 known moons.
• The Great Red Spot is a prominent feature of Jupiter.
• Jupiter is the giant planet and the fastest-rotating planet in our solar system.
• It rotates approximately once every 10 hours.
• The age of Jupiter is about 4.603 billion years.
• Mercury is the smallest planet of the solar system.

Explanation

O negative (O⁻) blood group is called the universal donor.

It can be transfused to any blood group (A, B, AB, or O).

O⁻ lacks A, B, and Rh antigens, preventing immune reactions in recipients.

Explanation

Explanation

South Asian Association for Regional Cooperation (SAARC)

• Member Countries (8): Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, Sri Lanka
• Founded: 8 December 1985
• Headquarters: Kathmandu, Nepal
• Official Language: English
• Purpose: Promote regional cooperation, economic growth, and cultural exchange among South Asian nations

Last verified on 15-01-2026