Explanation

Full Duplex allows data to be sent and received simultaneously, making it the fastest communication mode.

In contrast:

Simplex is one-way only.

Half Duplex is two-way but not simultaneous.

Explanation

The Tundra ecosystem in Pakistan is found in the high-altitude regions of the Karakoram and Hindukush Mountains.

This ecosystem is characterized by cold climate, permafrost, and low vegetation like mosses and lichens.

Explanation

Afforestation is the process of planting trees in an area where there were no previous forests.

It helps in combating climate change, preventing soil erosion, and improving biodiversity.

Explanation

As we move down Group 17 (halogens), the melting point increases due to greater molecular mass and stronger van der Waals forces.

For example: Fluorine < Chlorine < Bromine < Iodine in melting points.

Explanation

Raney nickel is prepared by treating a nickel-aluminum alloy with a concentrated solution of sodium hydroxide.

This process, also known as activation, dissolves much of the aluminum, leaving behind a porous, highly active nickel catalyst. 

Explanation

An ammeter is always connected in series with a circuit to measure the current. 

In a series circuit, the current flows through each component one after the other, meaning the same current passes through every device in the circuit.

Since an ammeter is designed to measure the current flowing through a circuit, placing it in series ensures that the entire current passes through it. 

Explanation

The correct equation representing Heisenberg's uncertainty principle is A) Δx. Δp ≥ ħ/2. 

This equation relates the uncertainty in position (Δx) to the uncertainty in momentum (Δp),

Where "ħ" is the reduced Planck constant. 

Explanation

The number of ways to arrange n distinct objects in a circular ring is (n-1)!.

For 5 keys, the number of ways = (5-1)! = 4! = 24.

Explanation

SANATORIUM "دارالصحت" یا "تپ دق کے مریضوں کا علاج گاہ" 

Hospital  ہسپتال

Explanation

THORNS   کانٹے

Spine کانٹے