Question

मी दप्तर बोलतोय......!

Marathi subject​

Answer 1

Answer:

Vaccines are made by taking viruses or bacteria and weakening them so that they can't reproduce (or replicate) themselves very well or so that they can't replicate at all. Children given vaccines are exposed to enough of the virus or bacteria to develop immunity, but not enough to make them sick.

Answer 2

The first power loom was designed in 1786 by Edmund Cartwright and first built that same year. It was refined over the next 47 years until a design by the Howard and Bullough company made the operation completely automatic.