PPSC Everyday Science 2020 – 2024

What is the process called when gas moves from an area of high pressure to an area of low pressure: Effusion

The movement of molecules from high to low concentration, requiring no energy, is called: Diffusion

It is not advisable to sleep under tree at night because of the release of: Carbon dioxide

Which gas can be accumulated in poorly ventilated buildings: Radon

The main constituent of Hemoglobin is: Iron

Which of the following is known for its ability to replicate itself: Bacteria

By what percentage does water expand when it freezes: 9%

The most important stimulus for tea leaves: Caffeine

Which layer of the Earth is considered the most important: Mantle

In which is more electricity conducted: Steel

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