For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will:
A. also decrease
B. increase
C. remains constant
D. none of these
A Longsightedness can be corrected by using the _____ lens.
A. Concave
B. Convex
C. Diverging
D. None of these
Who gave the suggestion of digging the trench around the city of Madinah at the time of โbattle of Khandaqโ?
A. Abu Bakr Siddique (R.A)
B. Salman Al-Farsi (RA)
C. Khalid bin Waleed (R.A)
D. None of these (more…)
The removal of carbon dioxide, urine and sweat is a process of which of the following?
A. Digestion
B. Respiration
C. Excretion
D. Circulation
When China successfully landed its Tianwen-1 spacecraft on Mars?
A. 15th May 2021
B. 5th March 2021
C. 2nd April 2021
D. 1st Feb 2021 (more…)
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