Ethylene glycol is added to water as an antifreeze. It will

Options

A. decrease the freezing point of water in the winter and increase the boiling point of water in the summer
B. only decrease the freezing point of water
C. only increase the boiling point of water
D. be used for cleaning the radiator in a car

Explanation

### Step-by-Step Solution:

1. **Understanding the Role of Ethylene Glycol**: Ethylene glycol is a chemical compound commonly used as an antifreeze in various applications, particularly in automotive radiators.

2. **Freezing Point Depression**: When ethylene glycol is mixed with water, it lowers the freezing point of the solution. This means that the mixture will remain liquid at temperatures where pure water would freeze.

3. **Boiling Point Elevation**: In addition to lowering the freezing point, ethylene glycol also raises the boiling point of the solution. This is important because it allows the coolant to operate effectively at higher temperatures without evaporating.

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