For the following questions answer them individually
Which of the following is, "A device used to connect two separate Ethernet networks into one extended Ethernet."?
________________ is a language for the specification of procedures for the retrieval (and sometimes also modification) of information from a database.
Read the pairs given below -
Name : Formula
1. Acetone : $$CH_2OHCHOHCH_2OH$$
2. Ethanal : $$CH_3CHO$$
3. Formaldehyde : $$HCHO$$
4. Glycerol : $$CH_3COCH_3$$
Which of the above pairs are correctly matched?
Francium is highly radioactive; its longest-lived isotope223Fr has a half-life of only _____________.
While testing pollution in water a high coliform count indicates high levels of ______.
Which of the following gases present in the earth's atmosphere absorbs ultraviolet radiation emitted from the sun?
