Explanation

Sponges belong to the phylum Porifera, characterized by a porous body structure.

They have internal canals for water flow, aiding in filter feeding and respiration.

Explanation

To find the value of k, use the Factor Theorem:

If a polynomial f(x) is completely divisible by (x - a), then f(a) = 0.

In this case, the polynomial is:

f(x) = 3x³ + 9x² - (3k - 4)x + 2

Since it's divisible by (x - 1), substitute x = 1:

f(1) = 3(1)³ + 9(1)² - (3k - 4)(1) + 2

= 3 + 9 - 3k + 4 + 2

= 18 - 3k

Set f(1) = 0:

18 - 3k = 0

Solve for k:

3k = 18

k = 6

Explanation

Words gave the same ending sounds are called Rhyming words.

Example: One – Won, Tug and Bug.

Explanation

سلطان صلاح الدین ایوبی، جو ایوبی سلطنت کے بانی تھے، 55 برس کی عمر میں 4 مارچ 1193 کو انتقال کر گئے تھے۔

وہ اپنی عدل و انصاف، شجاعت، اور خصوصاً فتح بیت المقدس (1187) کے باعث تاریخ میں ممتاز حیثیت رکھتے ہیں۔

Explanation

Parasitism is a relationship where one organism (parasite) lives on or inside another organism (host) and harms it.

Examples include ticks on animals and tapeworms in the human intestine.

Explanation

3, 4, and 5

Since all three conditions of the Triangle Inequality Theorem are satisfied:

3 + 4 = 7 > 5

3 + 5 = 8 > 4

4 + 5 = 9 > 3

Explanation

صحیح حدیث کے مطابق، حضرت عثمان رَضِیَ اللہُ تَعَالٰی عَنْہُ سے فرشتے بھی حیا کرتے تھے۔

نبی کریم ﷺ نے فرمایا: "کیا میں اس شخص سے حیا نہ کروں جس سے فرشتے بھی حیا کرتے ہیں؟" (صحیح مسلم)

حضرت عثمان اسلام کے تیسرے خلیفہ تھے۔

جن کی شہادت 82 برس کی عمر میں ہوئی۔

Explanation

A generator works on Faraday’s Law of Electromagnetic Induction, producing electricity when a conductor moves in a magnetic field.

It converts mechanical energy into electrical energy using electromagnetic induction.

Explanation

Given the quadratic equation:

x² - 7x + k = 0

Using the sum and product of roots formula:

Sum of roots: α + β = -b/a = 7/1 = 7

Product of roots: αβ = c/a = k/1 = k

So, the value of 𝑘 is the product of the roots, which is:

𝑘 = 12

Explanation

The characteristic of a decimal number in scientific notation is the exponent of 10 when expressed as N × 10^n.

Converting 0.006735 to scientific notation: 6.735 × 10⁻³, so the characteristic is -3.