Explanation

ROM (Read-Only Memory) is non-volatile.

This meaning it retains data even when the power is turned off.

RAM is volatile.

Explanation

Web 2.0 emphasizes human collaboration, user-generated content, and social interaction through platforms like social media, blogs, and wikis.

It focuses on a more dynamic and interactive web experience compared to the earlier, static Web 1.0.

Explanation

To find how much more money Ahmed needs:

Rs. 98.46 - Rs. 52.25 = Rs. 46.21

Explanation

Professional Development refers to a teacher’s efforts to improve and manage their teaching skills, knowledge, and practices.

It includes ongoing learning, training, and reflection to stay effective and current in the profession.

Explanation

Dry ice sublimation is a physical change where solid CO₂ directly turns into gas without changing its chemical composition.

Rusting of iron, burning of wood, and cooking of egg are all chemical changes, where new substances are formed.

Explanation

The set { 0, +, - } contains three distinct elements:

0, +, and −

Explanation

40% of 45 = (40 ÷ 100) × 45 = 18.

So, 18 is 40 percent of 45.

Explanation

Multiplying by 100 shifts the decimal 2 places to the right.

Example: 3.45 × 100 = 345.

Explanation

The main enzyme used to make cheese is rennet (also known as rennin).

Rennet is a milk-clotting enzyme that causes milk to curdle, which is a crucial step in cheese production. 

Explanation

Coagulation is the process where a liquid changes into a semisolid or gel-like state.

It often occurs in biological and chemical systems, such as blood clotting or curd formation.