Explanation

• Proton has a positive charge.
• Its charge is +1e.
• 1e = 1.602 x10^-19 C.
• Classification: Baryon
• Composition: 2 up quarks (u), 1 down quark (d)
• Statistics: Fermionic
• Family: Hadron
• Interactions: Gravity, electromagnetic, weak, strong
• Symbol p, p+, N+, 11H+
• Theorized: William Prout (1815)
• Discovered: observed as H+ by Eugen Goldstein (1886). Identified in other nuclei (and named) by Ernest Rutherford (1917–1920).

Explanation

Explanation

اصطلاح میں حجامت جسم سے خون نکالنے کے ایک خاص طریقہ و روش کو کہتے ہیں

کہ جو بعض بیماریوں کے علاج کے طور پر نکالا جاتا ہے   

Explanation

The chemical formula of baking soda is NaHCO₃, which stands for sodium bicarbonate.

The chemical name of baking soda is sodium hydrogen carbonate or sodium bicarbonate (NaHCO3).

Sodium bicarbonate is non flammable

Baking soda is basic in nature.

Explanation

Measles is one of the world's most contagious diseases

It spread by contact with infected nasal or throat secretions (coughing or sneezing) or breathing the air that was breathed by someone with measles.

The virus remains active and contagious in the air or on infected surfaces for up to two hours.

Explanation

salt (NaCl), sodium chloride, a mineral substance of great importance to human and animal health, as well as to industry. 

Formula: NaCl

Molar mass: 58.44 g/mol

Melting point: 801 °C

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ND30-12-2022

ND5-07-2023

Explanation

Explanation

• Speleology is the scientific study and exploration of caves.
• The word comes from the Greek words "spelaion", meaning "cave", and "-logy", meaning "study" or "science".

Explanation

Ornithophily refers to pollination by birds.

Flowers adapted for this have bright colors and nectar to attract birds.

Explanation

Demography is the statistical study of the human population,

Including aspects such as size, structure, distribution, and dynamics.

It examines factors like birth and death rates, migration, age, sex, and occupation, among others.

انسانی آبادی کا شماریاتی مطالعہ ڈیموگرافی کہلاتا ہے۔