Explanation

Nuclear fusion reactions in a star's core produce outward thermal pressure, which balances the inward pull of gravity.

This balance between gravitational force and nuclear pressure keeps the star stable and prevents collapse during its main life phase.

Explanation

CaCO₃ → CaO + CO₂

This reaction absorbs heat to break calcium carbonate into calcium oxide and carbon dioxide.

It is a classic endothermic decomposition reaction, requiring continuous heating to proceed.

Explanation

To find the greatest possible length of each piece, we need to find the greatest common divisor (GCD) of 18, 42, and 24.

Factors of 18: 1, 2, 3, 6, 9, 18

Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

The greatest common factor is 6.

Explanation

Existentialism in education emphasizes individual choice, freedom, and personal responsibility in learning.

It focuses on student-centered learning, allowing learners to explore what is personally meaningful to shape their identity.

Explanation

The word "kindly" suggests a polite request, so we use "requested" in indirect speech.

The sentence changes from direct to indirect without quotes and in the correct verb form.

Explanation

The Karnaugh map (K-map) method was introduced by Maurice Karnaugh in 1953.

It is used for simplifying Boolean algebra expressions visually.

Explanation

"With" is the correct preposition when referring to the tool used to perform an action (cut with a knife).

Cut with a knife means چاقو سے کاٹ

Explanation

Let's find the common difference (d) of the arithmetic sequence.

Step 1: Write the formula for the nth term

an = a + (n - 1)d

Step 2: Plug in the values

a = 2, n = 6, an = 27

27 = 2 + (6 - 1)d

27 = 2 + 5d

Step 3: Solve for d

25 = 5d

d = 25/5

d = 5

Explanation

The expression is 2x² + 8x + 8. First, factor out 2:

→ 2(x² + 4x + 4)

Now factor the quadratic:

→ x² + 4x + 4 = (x + 2)(x + 2)

So the full factorization is 2(x + 2)(x + 2).

Explanation

Cyberbullying involves using digital platforms to threaten, harass, or humiliate someone.

It includes actions like sending harmful messages, spreading rumors, or sharing private information online.