| Q.18 | Which of the following is a process in which hot, less dense materials rise upward and are replaced by colder, more dense materials? | |
| Ans | 1. Radiation | |
| 2. Convection | ||
| 3. Condensation | ||
| 4. Conduction |
Correct Ans Provided: 2
Date: 13/08/2021 Shift: 9:00 AM – 10:00 AM Q. No: 43
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