STD VIII - Science (III)

Crops grow well when they are

Most essential component for crops is

Crops that need a lot of water are

Carriage of water through pipelines and tube wells to farms is known as

Diseases which are caused by micro-organisms are called

The microbe that reproduces only inside the body of the host organism

Sodium Benzoate is a _______________

Edward Jenner in 1798 discovered the vaccine for ______________

Disease causing micro organisms are called________________

Sodium Metabilsulphite is a