Which one of the following fish variety is a surface feeder?

How do Sunhemp or guar help in crop production management? How is it better than fertilizers?

What is the advantage of selecting seeds of crops with wider adaptability for agriculture?

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?

Complete the crossword puzzle (Fig.).
Across
$1.$ Oil yielding plant $(9)$
$3.$ Crop grown in winter season $(4)$
$5.$ Fixed by Rhizobium $(8)$
$9.$ Common honey bee $(4)$
Downward
$2.$ Animal feed $(6)$
$4.$ $A$ micronutrient $(5)$
$6.$ Unwanted plant in crop fields $(4)$
$7.$ An exotic breed of chicken $(7)$
$8.$ Bottom feeders in fish pond $(7)$
$10.$ $A$ marine fish $(4)$

Why should bee keeping be done in good pasturage?