Bihar board class 6 hindi chapter 5 question answer July 8, 2019 16 32 64 128 Bihar board class 6 hindi chapter 5 ka question answer Bihar board class 5 hindi book question answer chapter 6 Botanika 6 sinf Biologiya 6 sinf testlar Biologiya 6 sinf savol javoblar 6 sinf biologiya savol javob