The pressure exerted by a certain gas in a mixture.
Density is the mass per unit volume of any substance. Its units are kilograms per cubic metre.
The compounds that are formed when a reaction goes to completion.
Energy in the form of photons.
Substance containing an element which decays.
Mixture of a solid and a liquid where the solid never settles out, for example, saltwater.
Liquid in which something is dissolved, for example, the water in saltwater.
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ছোট গোলাকার উজ্বল রং-এর ওপর বিন্দু-র নকশা করা এক ধরনের গুবরে পোকা, এরা সাধারণত অ্যাফিডস্ জাতীয় নরম পতঙ্গ খায়৷
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Kolkata, 印度
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