Poultry fowl are susceptible to the following pathogens:

What are the advantages of intercropping?

Distinguish between intercropping and mixed cropping. List any two advantages of intercropping over mixed cropping.

What are the merits and demerits of fish culture?

The kind of flowers available determines the taste of honey.

The number of dengue cases has increased in Sana's village in the last one year. She read in her textbook that diseases like dengue spread through mosquitoes which breed in stagnant water. She immediately suggested to her friends that they should kill the mosquitoes in water bodies in the locality. They also took the help of the nearest municipal office.
$(a)$ Which preventive measures do you suggest for the prevention of such diseases caused by mosquitoes? Mention any two measures.
$(b)$ Which values are displayed by Sana in taking this initiative?
$(c)$ Suggest one school activity to promote such values in school students.