Explanation

• Happy means خوش
• Lucky means خوش قسمت

Last updated: 13-09-2026

Explanation

• Insulin is produced by the pancreas.
• The pancreas contains clusters of cells called the Islets of Langerhans.
• Beta (β) cells within these islets produce and secrete insulin.
• Insulin helps regulate blood glucose (sugar) levels by promoting glucose uptake into cells.

Last verified on 07-09-2026

Explanation

Find the differences:

6 − 2 = 4

12 − 6 = 6

20 − 12 = 8

30 − 20 = 10

42 − 30 = 12

The differences increase by 2 each time.

Next difference = 14

42+14=56

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Explanation

• Anthropology is the study of human life, culture, and societies.
• It examines human origins, customs, beliefs, languages, traditions, and cultural development.
• Anthropology helps us understand how humans have evolved and how different cultures function.

Additional information:

• Sociology: Human society and social relationships.
• Psychology: Human mind and behavior.
• Biology: Living organisms and life processes.

Last verified on 21-07-2026

Explanation

Oxidation is the chemical process of:

• Losing electrons
• Oxidation state increases
• Always paired with reduction (together form redox)
• Reducing agent gets oxidized (it gives up the electrons)

Additional information 

Reduction:

• Gain electrons
• Oxidation state lowers
• Always paired with oxidation (redox)
• Oxidizing agent gets reduced

Explanation

Bacillus refers to rod-shaped bacteria.

Coccus are spherical.

Spirillum are spiral-shaped.

Explanation

- The elementary charge on a single electron is -1.6 × 10⁻¹⁹ coulombs.

- It’s a fundamental physical constant.

Explanation

Explanation

 A buffer is a solution that resists change in its pH. 

A buffer solution is composed of a weak acid and its conjugate base (or a weak base and its conjugate acid).

When a small amount of a strong acid or base is added to a buffer,

The added ions react with the components of the buffer to maintain a relatively constant pH. 

Explanation

If one mole of gaseous hydrogen is mixed with one mole of gaseous iodine in an empty container, then with time, the forward reaction decreases

Because as the reaction proceeds, the concentration of hydrogen and iodine decreases, leading to a slower rate of forward reaction, while the reverse reaction starts to increase until equilibrium is reached.