Explanation

Dogs are trained to detect a wide range of substances, including narcotics, weapons like firearms and ammunition, and even metals.

Their exceptional sense of smell allows them to be highly effective in various detection tasks. 

Explanation

Given:

- Speed of train = 30 m/s  

- Time to cross bridge = 20 s  

- Length of bridge = 400 m  

Total distance covered = Speed × Time = 30 × 20 = 600 m  

So, length of train = 600 - 400 = 200 m

Correct answer: 200 m 

Explanation

Watch towers are elevated structures used to observe wide areas over long distances.

Ideal for surveillance, border security, and early threat detection.

Explanation

"Poor" is used as a plural noun here to refer to poor people collectively.

Poor means غریب

Explanation

The largest and deadliest flood in Pakistan's recorded history occurred in 2022

The 2022 Pakistan floods, which began in June and lasted until October, killed 1,739 people

The 2010 Pakistan floods, however,

Resulted in a higher number of fatalities with 1,985 deaths and estimated damages of USD 43 billion. 

Explanation

50% of 100 is 50.

50% of 50 is 25.

Explanation

15 ÷ 3 = 5

5 + 20 = 25

Explanation

Explanation

To find the Arithmetic Mean (Average):

Add the numbers: 10 + 20 + 30 + 40 + 50 = 150

Count the numbers: 5

Divide the sum by the count: 150/5 = 30

Explanation

"K-9" is a homophone of "canine," referring to dogs.

It's used to denote specially trained police dogs and their units.