Question

1,Define pathogens.
2,List any four properties of an ideal fuel.​

Answer 1

Answer:

1. the disease causing microbes are called pathogens

Answer 2

Explanation:

Ans1 pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence. Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.

Ans 2 It should possess high calorific value.

It should have proper ignition temperature. The ignition temperature of the fuel should neither be too low nor too high.

It should not produce poisonous products during combustion. ...

It should have moderate rate of combustion.