Which atmospheric layer contains ions and helps in wireless communication?

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AMesosphere

BThermosphere

CTroposphere

DStratosphere

Answer:

The atmospheric layer that contains ions and enables wireless communication is the thermosphere, specifically the lower part of the thermosphere which is known as the ionosphere.
This layer contains charged particles (ions) that reflect radio waves, making long-distance communication possible.

Related Questions:

Which of the following statements is are true for a number of resistors connected in parallel combination?

(1) All the resistors are connected between two given points.
(ii) The equivalent resistance of the circuit is more than the individual resistance.
(iii) The potential difference across each resistor is same.