Consider the following materials:

1. Agricultural residues

2. Corn grain

3. Wastewater treatment sludge

4. Wood mill waste

Which of the above can be used as feedstock for producing Sustainable Aviation Fuel?

Consider the following statements :

1. Biofilms can form on medical implants within human tissues.

2. Biofilms can form on food and food processing surfaces.

3. Biofilms can exhibit antibiotic resistance.

Which of the statements given above are correct ?

Consider the following statements in respect of probiotics :

1. Probiotics are made of both bacteria and yeast.

2. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut.

3. Probiotics help in the digestion of milk sugars.

Which of the statements given above is/are correct?