Explanation

The geometric mean between 4 and 16 is √(4 × 16) = √64 = 8.

Explanation

 Fe atomic number = 26 → Fe: [Ar] 3d⁶ 4s²  

Fe²⁺ loses 2 electrons → becomes 3d⁶ → 4 unpaired electrons.  

Others have fewer or no unpaired electrons.

Explanation

GALES "تیز ہوائیں" یا "طوفانی ہوائیں"

Winds  "تیز ہوائیں" یا "طوفانی ہوائیں"

Explanation

Explanation

 The common cultivated potato, Solanum tuberosum,

It has 48 chromosomes in its somatic cells (2n=4x=48).

This means it is a tetraploid species, with two sets of chromosomes derived from each of its two parents.

Therefore, the number of chromosomes in a potato's egg cell and in haploid somatic cells is 24. 

Explanation

Molar mass of CH₄ = 12 (C) + 4×1 (H) = 16 g/mol, so 16 g = 1 mole of CH₄.

At standard temperature and pressure (STP), 1 mole of any gas occupies 22.4 dm³, so CH₄ also occupies 22.4 dm³.

Explanation

The Carnot cycle is best represented on a Pressure-Volume (P-V) graph.

It consists of two isothermal and two adiabatic processes, clearly shown in the P-V diagram.

Explanation

Hardware refers to the physical components of a computer system, like the keyboard, mouse, CPU, and monitor.

It contrasts with software, which refers to programs and logic.

Explanation

If A is a non-singular square matrix, then its inverse A⁻¹ exists.

The product AA⁻¹ = I, where I is the identity matrix.

Explanation

Gymnosperms are plants with exposed seeds, and Gingko is a well-known example of this type of plant.