Question

which is the most inportant chapter of biology chemistry and physics of class 10th

Answer 1

bio chapter..
circulatory system
nervous system
endocrine gland..
and physics
Calorimetery
radioactivity
force
pulley
refraction

Answer 2

Biology:- Life Process, How do organisms reproduce and Hereditary and evolution.
Chemistry:-Metals and non-metals, Carbon and its compounds and Periodic classification of elements.
Physics :- Light, Electricity and Magnetic effects of electric current