Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Physics Heat and Transfer
Which of the following is a process in which hot, less dense materials rise upward and are replaced by colder, more dense materials?
1
Convection
2
Radiation
3
Conduction
4
More than one of the above
5
None of the above