Vividha told Vasudha that she will show her some magic. Vividha took a metallic pipe. She asked Vasudha to hold one of its ends close to her ears. She gently tapped the other end of the pipe with a metallic object. She asked Vasudha what she heard. Vasudha said she heard two sounds.
$(a)$ Was this magic? Why did Vasudha hear two sounds?
$(b)$ What values are imbibed by Vividha?

What are those crops called which are grown in the winter season?

Sameer once went to his granny's home with his family and he saw his granny serving water from an earthen pot and was surprised to see that and asked granny why she has kept that earthen pot for storing water. His granny then answered him that it keeps the water cool during summers,he then smiled and thanked her.
$(a)$ According to you,how does water kept in an earthen pot become cool during summers?
$(b)$ What kind of qualities are shown by Sameer?

Find out the correct sentence:
$(i)$ Hybridisation means crossing between genetically dissimilar plants.
$(ii)$ Cross between two varieties is called as interspecific hybridisation.
$(iii)$ Introducing genes of desired character into a plant gives genetically modified crop.
$(iv)$ Cross between plants of two species is called as inter-varietal hybridisation.

List any three management practices while designing a shelter for cattle.

How can poultry farming be integrated with crop production? How are improved poultry breeds developed in poultry farming?