Explanation

• The incorrect statement is: States of matter does not change during chemical reactions.
• During chemical reactions, states of matter can change.
• For example, a solid may dissolve in a liquid, a liquid may vaporize, or a gas may condense into a liquid.

Last verified on 09-03-2026

Explanation

• The ozone layer acts as Earth’s natural sunscreen, protecting life from the sun’s harmful ultraviolet (UV) radiation.
• UV radiation can cause skin cancer, eye damage, and harm to plants and animals.

Additional information:

• Chemical Formula: O₃ (three oxygen atoms)
• Layer Location: Stratosphere, 15–40 km above Earth
• Function: Absorbs UV-B and UV-C rays from the Sun
• Depletion Causes: Air pollution, CFCs, industrial chemicals
• Protection Measures: Reduce CFC use, ozone-friendly products

Last verified on 09-03-2026

Explanation

• Melting of ice is a physical change, as it only involves a change in state (from solid to liquid) without a change in chemical composition.

The examples of chemical changes:

• Burning of fuel
• Explosion of firework
• Burning of wood
• Cooking of food (breakfast, lunch, dinner)
• Bursting of crackers
• Burning of wax
• Rusting of iron
• Heating sulphur with iron fillings (to produce iron sulphide)
• Digestion of food
• Respiration in living things
• Photosynthesis in plants

Last verified on 09-03-026

Explanation

• Lebanon does not use the Dinar as its currency.
  • The official currency of Lebanon is the Lebanese Pound (LBP).
  • Countries like Kuwait, Iraq, Algeria, Tunisia, Bahrain, Libya, and Jordan use Dinar as their official currency.

Last verified on 09-03-2026

Explanation

• The Leaning Tower of Pisa is in Pisa, Italy.
• Located in the Piazza del Duomo (Square of Miracles).

Additional information:

• The height of the tower is 55.86 metres (183 feet 3 inches).
• Construction started: August 9, 1173
• Architect: Bonanno Pisano
• Floors: 8
• Completed: 1372

Last verified on 09-03-2026

Explanation

Kazakhstan is the largest country in Central Asia.

• It is the ninth largest in the world.
• Capital: Astana
• Area: 2.725 million km²
• Dialing code: +7
• Currency: Kazakhstani Tenge

Last verified on 09-03-2026

Explanation

• In Pakistan, the largest share of electricity generation comes from Thermal Energy.
• Thermal power plants generate electricity using coal, oil, and natural gas.

Additional information:

• One of the largest thermal power plants is Kot Addu Power Company (KAPCO) in Kot Addu, Punjab.
• Capacity: Approximately 1600 MW, making it one of Pakistan’s major electricity-producing plants.

Last verified on 09-03-2026

Explanation

Chile Capital is Santiago.

Chile Currency is Chilean Peso.

Chile official language is Spanish.

Chile located is in Continent South America.

Chile Primary Religion is Christianity.

Chile Head of Govt. is President – Gabriel Boric.

Chile Parliament called .

Tricks for Remember

PESO

 M-A-C C-P-U

MindTrick : just like MAC intosh…Cpu

**MAC**

M-Mexico

A-Argentina

C-Chile

**CPU**

C-Columbia

P-Philipines

U-Uruguay

Last verified on 09-03-2026

Explanation

• Double landlocked means a land-locked country that is also surrounded by landlocked neighboring countries.
• Uzbekistan is bordered by Afghanistan, Kazakhstan, Kyrgyzstan, Tajikistan, and Turkmenistan.
• Liechtenstein bordered by Austria and Switzerland.

Last verified on 09-03-2026

Explanation

2022 Nobel Peace Prize Recipients

• Ales Bialiatski – Belarus
• Memorial Organization – Russia
• Center for Civil Liberties – Ukraine

Last verified on 09-03-2026