The Soomra dynasty was a kingdom of Sindh, and at times adjacent regions, located in what is now present-day Pakistan.
This is a sentence of Future Simple Tense.
The passive form in the simple future tense is made by putting will / shall + be before the past participle form of the verb.
This is a sentence of Present Indefinite Tense.
The formula of Passive Voice for Present Indefinite Tense to Passive Voice: Object + is/are/am + III form of verb + by+ subject.
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The human ear responds to frequencies in the range of 20 Hz to 20,000 Hz (20 kHz),18 although most speech frequencies lie between 100 and 4,000 Hz.