Classify the following into open, closed or isolated system :
(i) Animals and plants
(ii) A referigerator or a fridge
(iii) A solar cooker

Explanation

To classify the given systems into open, closed, or isolated systems, we will analyze each option based on the definitions of these systems.

### Step-by-Step Solution:

1. **Understanding Open, Closed, and Isolated Systems**:
- **Open System**: A system that can exchange both mass and energy with its surroundings.
- **Closed System**: A system that can exchange energy but not mass with its surroundings.
- **Isolated System**: A system that cannot exchange either mass or energy with its surroundings.
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