Explanation As of February 2025, China contributed 40% of Pakistan’s total FDI in infrastructure during FY 2024–25 . China invested $790 million in sectors like power, energy, and transport , making it the top foreign investor.

Explanation In February 2025, the International Monetary Fund (IMF) conducted a Governance and Corruption Diagnostic Assessment in Pakistan. The IMF dispatched a mission to Islamabad from February 6-14, 2025 , to assess governance and corruption risks in Pakistan at the request of the Pakistani government . The assessment was part of the Extended Fund Facility (EFF) 2024 program.

Explanation Dogs can hear sounds in the range of 67 Hz to 45,000 Hz , which is slightly higher than the human audible range. Explanation Whales have a unique audible range that is adapted to their underwater environment. They can hear sounds at very low frequencies , often below 20 Hz, and up to 31 kHz. Explanation Elephants can hear sounds in the range of 16 Hz to 20,000 Hz. Explanation Echoes are repeating sounds that are reflected back to the listener after the original sound has stopped. They are a result of sound waves bouncing off a surface and returning to the listener , creating a repeated or echoic effect. Explanation The speed of sound in diamond is approximately 12,000 meters per second (m/s). It is one of the fastest speeds of sound among all materials. The speeds of sound in different materials: Air: 343 m/s Water: 1433 m/s Wood: 3300-3600 m/s Brick: 4176 m/s Steel: 6100 m/s Diamond: 12000 m/s Explanation The speed of sound in air at sea level and 20°C (68°F) is approximately 343 meters per second . The speeds of sound in different materials: Air: 343 m/s Water: 1433 m/s Wood: 3300-3600 m/s Brick: 4176 m/s Steel: 6100 m/s Diamond: 12000 m/s Explanation Sound travels slowest in air , with a speed of approximately 343 meters per second (m/s) at 20°C. This is because air is a gas and has a low density and stiffness , which allows sound waves to propagate more slowly through the material. The speeds of sound in different materials: Air: 343 m/s Water: 1433 m/s Wood: 3300-3600 m/s Brick: 4176 m/s Steel: 6100 m/s Diamond: 12000 m/s Explanation The velocity of a wave (v) is equal to the product of its wavelength (λ) and frequency (f). This is expressed mathematically as: v = λf Explanation Frequency is the number of vibrations or oscillations produced by a vibrating body in one second. It's measured in Hertz (Hz) , where 1 Hz equals one vibration per second. Explanation Decibel (dB) is the unit used to measure sound intensity. Which is related to the amplitude of a sound wave. The amplitude of a sound wave determines the loudness of the sound One decibel (0.1 bel) equals 10 times the common logarithm of the power ratio.

Explanation Dogs can hear sounds in the range of 67 Hz to 45,000 Hz , which is slightly higher than the human audible range. Explanation Whales have a unique audible range that is adapted to their underwater environment. They can hear sounds at very low frequencies , often below 20 Hz, and up to 31 kHz. Explanation Elephants can hear sounds in the range of 16 Hz to 20,000 Hz. Explanation Echoes are repeating sounds that are reflected back to the listener after the original sound has stopped. They are a result of sound waves bouncing off a surface and returning to the listener , creating a repeated or echoic effect. Explanation The speed of sound in diamond is approximately 12,000 meters per second (m/s). It is one of the fastest speeds of sound among all materials. The speeds of sound in different materials: Air: 343 m/s Water: 1433 m/s Wood: 3300-3600 m/s Brick: 4176 m/s Steel: 6100 m/s Diamond: 12000 m/s Explanation The speed of sound in air at sea level and 20°C (68°F) is approximately 343 meters per second . The speeds of sound in different materials: Air: 343 m/s Water: 1433 m/s Wood: 3300-3600 m/s Brick: 4176 m/s Steel: 6100 m/s Diamond: 12000 m/s Explanation Sound travels slowest in air , with a speed of approximately 343 meters per second (m/s) at 20°C. This is because air is a gas and has a low density and stiffness , which allows sound waves to propagate more slowly through the material. The speeds of sound in different materials: Air: 343 m/s Water: 1433 m/s Wood: 3300-3600 m/s Brick: 4176 m/s Steel: 6100 m/s Diamond: 12000 m/s Explanation The velocity of a wave (v) is equal to the product of its wavelength (λ) and frequency (f). This is expressed mathematically as: v = λf Explanation Frequency is the number of vibrations or oscillations produced by a vibrating body in one second. It's measured in Hertz (Hz) , where 1 Hz equals one vibration per second. Explanation Decibel (dB) is the unit used to measure sound intensity. Which is related to the amplitude of a sound wave. The amplitude of a sound wave determines the loudness of the sound One decibel (0.1 bel) equals 10 times the common logarithm of the power ratio.

Explanation Primary Cause of 2022 Floods : Record Monsoon Rains : Pakistan received 190% more rainfall than average (NDMA data), submerging 1/3 of the country. Glacial Melt : Heatwaves accelerated melting, adding to water volume (UN report). Poor Infrastructure : Weak dams, drainage systems, and urban planning worsened flooding.

Explanation The local government system brings governance closer to the people, allowing for faster and more responsive service delivery. It helps decentralize power from federal/provincial levels and encourages community participation in development.

Explanation The 1973 Constitution provides the framework for Pakistan’s political system, including the roles of the legislature, executive, and judiciary . It declares Pakistan an Islamic republic . It ensures fundamental rights, and establishes a parliamentary form of government.

Explanation The judiciary in Pakistan plays a key role in interpreting the Constitution and laws of the country. It ensures justice , protects fundamental rights, and maintains checks and balances on the executive and legislative branches.

Explanation Mount K2 is the  second -highest mountain on Earth. It is part of the  Karakorum Range. It is located on the  China–Pakistan border  between Baltistan in the Gilgit-Baltistan r egion of northern Pakistan. K2,  at 8,611  meters above sea level. K-2 is Also Known As  Godwin Austin. 'K' standing for  Karakoram. K2 mountain was first measured by  Godwin Austen  in 1856. The  Silk Route i s also  known  as the   Karakoram Highway. Additional information: The first highest mountain on Earth is  Mount Everest. It is  located  in  Nepal . The  new height  of Mount Everest is   8,848.86m (29,032 feet). Mount Everest was  named  after   George Everest in 1856.

Explanation Given sentence is in Past simple tense and it is in active voice, we need to change it into passive voice. Rule : Subject + (was / were) + V 3  + Optional Agents