TY  - BOOK
AU  - Chahal, Sumesh
TI  - NCERT COMPENDIUM Science And Environment: : One stop solution for upsc and state - PSCs
SN  - 9789355327987
U1  - 373.076 
PY  - 2025///
CY  - Chennai
PB  - McGraw Hill Education
KW  - Our Environment
KW  - Ecosystem
KW  - Life Processes
N1  - it include bibliography
ER  -