Explanation

 The house sparrow ( Passer domesticus) is a very common bird species found in Pakistan 

One of about 25 species in the genus Passer, the house sparrow is native to most of Europe, the Mediterranean Basin, and a large part of Asia

Explanation

Xerosere, as xerosere refers to primary succession occurring in dry, barren environments like deserts or rocky surfaces.

"Derosere" is not a standard ecological term.

Explanation

 1 hour = 820 jumps

30 minutes = (820 ÷ 2) = 410 jumps

Explanation

Respiration,

specifically cellular respiration, is the process where cells use oxygen to break down glucose (a type of sugar derived from food) and release energy in the form of ATP (adenosine triphosphate), which is the energy currency of the cell. 

Explanation

The symbiotic relationship between algae and fungi on bare rocks, forming a composite organism, is called a lichen. 

Lichens are not single organisms but rather a composite of two: A fungus and an algae or cyanobacteria. 

Explanation

 Brood stock fish are parent fish from which fry and fingerlings are produced. ... production mainly depends on healthy, good quality mature brood stocks.

Explanation

 The group of individuals of the same species living in the same area, whether of the same age or not, is called a population. 

Explanation

Mesohyl is a gelatinous, protein-rich layer found in sponges, acting as a connective tissue between their inner and outer layers.

Explanation

The Rafi Peer Theatre Workshop, named after Usman peer, was founded by two brothers 

It was founded by two of his sons, Faizaan Peerzada and Sadaan Peerzada,

Explanation

 To calculate the duration between 21:30 (9:30 PM) and 7:30 (7:30 AM), follow these steps:

Convert to 24-Hour Format:

Departure: 21:30

Arrival: 07:30 (next day)

Calculate Duration:

From 21:30 to midnight (00:00): 2 hours 30 minutes

From midnight to 07:30: 7 hours 30 minutes

Total duration: 2:30 + 7:30 = 10 hours

Therefore, the correct answer is B. 10 Hours.