মহাকাশ বিজ্ঞান জগতৰ বিষয়ে Assam Direct Recruitment, Assam Police, Assam TET, DME, SSC ৰ বাবে লাগতীয়াল প্ৰশ্ন || Our Universe…
50 General Knowledge Questions About Human Body 1: Number of bones: 2062: Number of muscles: 6393: Number of kidneys: 24:…
1.What is light? Ans:Light is a form of energy which produces the sensation of vission.2. What is beam?Ans: A collection…