অনুসন্ধান করুন
Krypton
01
a colorless element that is one of the six inert gasses; occurs in trace amounts in air
অ্যাপ ডাউনলোড করুন
Download Mobile App
অনুসন্ধান করুন
a colorless element that is one of the six inert gasses; occurs in trace amounts in air