Question

কোন প্রকার জননে অপত্যের দেহে নতুন বৈশিষ্ট্য প্রকাশের সম্ভাবনা থাকে​

Answer 1

In 1907 Leo Baekeland invented Bakelite, the first fully synthetic plastic, meaning it contained no molecules found in nature. Baekeland had been searching for a synthetic substitute for shellac, a natural electrical insulator, to meet the needs of the rapidly electrifying United States.