Select the mismatched option from the following.

One of the useful activities of several bacteria is

Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.

Read the following four statements $(A-D)$.
$(A)$ Colostrum is recommended for the new born because it is rich in antibodies.
$(B)$ Chikungunya is caused by a Gram-negative bacterium.
$(C)$ Tissue culture has proved useful in obtaining virus-free plants.
$(D)$ Beer is manufactured by distillation of fermented grape juice.
How many of the above statements are wrong?

Which of the following statements is false?

Name the scientists who were credited for showing the role of Penicillin as an antibiotic.