Explanation

• The demand for a separate Muslim state was mainly based on religious identity.
• Muslims of the subcontinent wanted to preserve their religion, culture, and traditions.
• They feared domination by the Hindu majority in a united India.
• This idea was clearly presented in the Lahore Resolution.

Last verified on 04-05-2026

Explanation

• Quantum theory explains how energy is emitted and absorbed.
• Energy is not continuous; it is released in fixed small units.
• These units are called quanta (photons).
• This idea was introduced by Max Planck in 1900.

Last verified on 04-05-2026

Explanation

• The photoelectric effect shows that light can eject electrons from a metal surface.
• This happens only when light has enough energy (frequency).
• It proves light behaves as tiny packets of energy (photons).
• This supports the particle nature of light, not just wave theory.

Last verified on 04-05-2026

Explanation

• The Moon’s gravity pulls water toward it → high tide.
• Opposite side also experiences high tide due to inertia.
• Low tides occur between high tides.
• Earth’s rotation helps in the timing of tides.

Last verified on 04-05-2026

Explanation

• Pakistan’s water supply mainly depends on its river system.
• The Indus River System is the primary source of water for agriculture and daily use.
• It includes major rivers like Indus, Jhelum, Chenab, Ravi, and Sutlej.

Last verified on 04-05-2026

Explanation

• Energy consumption refers to how different sectors use power sources like electricity, gas, and fuel.
• Among all sectors, industries require the largest amount of energy for production and manufacturing.
• Industrial activities run machinery, factories, and heavy equipment continuously.

Additional information:

• Transport is usually the second largest energy-consuming sector.

Last verified on 04-05-2026

Explanation

• Natural gas is an important fossil fuel used widely in Pakistan.
• It is mainly used for electricity production and household purposes.
• It also supports industries and transportation in some cases.
• Pakistan has major gas fields in Sui (Balochistan).
• Sui gas was discovered in 1952.

Last verified on 04-05-2026

Explanation

• Solar and wind energy are renewable sources of energy, meaning they are sustainable and will not run out.
• Solar energy is generated from the sun's rays.
• Wind energy is generated from the wind.

Last verified on 09-02-2026

Explanation

• The nucleus is the control center of the cell.
• It regulates all vital activities like growth, reproduction, and metabolism.
• It contains genetic material (DNA).
• Ribosomes make proteins, and cytoplasm supports cell structure.

Last verified on 04-05-2026

Explanation

• Vitamin A deficiency → Night blindness (Nyctalopia)
• Vitamin A is important for vision and immune function.

Additional information:

• Vitamin K is essential for blood clotting.
• Vitamin D helps in calcium absorption and bone mineralization.
• Vitamin B1 supports nerve function and energy metabolism.

Last verified on 01-02-2026