Explanation

Atomic mass = number of protons + number of neutrons → 2 + 1 = 3.

Electrons do not contribute significantly to atomic mass.

Explanation

Let's find the square numbers between 63 and 143:

8² = 64 (since 8² = 64 > 63)

9² = 81

10² = 100

11² = 121

The next square number would be 12² = 144, which is greater than 143, so we stop at 11².

Now, let's calculate the sum:

64 + 81 + 100 + 121 = 366

Explanation

RBCs lack a nucleus to make more room for hemoglobin, which carries oxygen.

This structure helps them efficiently transport oxygen throughout the body.

Explanation

When white light passes through a prism, it is refracted, or bent, and split into its individual colors, a process known as dispersion.

The order of deviation is:

• Violet (most deviated)
• Blue
• Green
• Yellow
• Red (least deviated)

Explanation

The operating system (OS) manages hardware resources and provides a platform to run application software.

It acts as an interface between the user and the computer hardware.

Explanation

Explanation

Interrupted means رکاوٹ

Allow means اجازت دیں

Explanation

Enthusiastic means پرجوش

Interested means دلچسپی

Explanation

Carbohydrates are the body’s primary and quickest source of energy, especially glucose.

They are broken down during cellular respiration to release ATP (energy).

Explanation

ROM (Read-Only Memory) contains the firmware or BIOS needed to boot the computer.

It is non-volatile, meaning it retains data even when the power is off.