Which substance is used as a foaming agent in fire extinguisher? A. Nitrous Oxide B. Methane C. Aluminium hydroxide D. Carbon Monoxide Used to create foam for suppressing fire, especially in Class B fires.
A refrigerator works on the principle of: A. Thermodynamics B. Conservation of Mass C. Electromagnetism D. Newton's Laws Refrigerators use thermodynamic cycles to transfer heat and cool the inside.
Which air gas is the main cause of increased temperature (global warming)? A. Oxygen B. Carbon Dioxide C. Hydrogen D. Nitrogen CO? traps heat in the atmosphere and is the primary greenhouse gas.
Free oxygen is available on which planet? A. Mars B. Earth C. Jupiter D. Venus Only Earth has breathable oxygen in the atmosphere.
Insulin is secreted by: A. Adrenal gland B. Pituitary gland C. Thyroid gland D. Pancreas The pancreas produces insulin to regulate blood glucose levels.
Mount Tambora, the site of one of the largest volcanic eruptions in recorded history (1815), is located in which country? A. Philippines B. Japan C. Indonesia D. Malaysia Mount Tambora is in Indonesia and erupted massively in 1815, affecting global climate.
In 2025, the program launched by Pakistan for science and development is: A. STED 2025 B. NASA 2025 C. Science Leap 2025 D. Digital Pakistan Plus A new initiative aimed at improving science education and research in Pakistan.
How much remittance did Pakistan receive during the first quarter of 2025? A. $12 billion B. $16 billion C. $8 billion D. $22 billion Remittances to Pakistan dropped in early 2025, with $8 billion received in Q1.
A series of increasing tariffs led to the U.S. imposing what percentage tariff on Chinese goods? A. 45% B. 145% C. 100% D. 200% In the trade war escalation, a 145% tariff was placed on select Chinese goods (as per test data).
Who is the new President of Syria as of early 2025? A. Bashar al-Assad B. Ahmed al-Sharaa C. Hassan Nasrallah D. Najib Mikati Following regime change, Ahmed al-Sharaa was appointed as President (fictional/test-based).