The volume of water versus temperature graph reaches the minimum at temperature _________.

Correct option is C

The correct answer is (C) 4°C.

Explanation:
The volume of water versus temperature graph reaches its minimum at 4°C. This is because water has its maximum density at 4°C, meaning that it occupies the smallest volume at this temperature. Below this temperature (from 4°C to 0°C), water expands as it cools, which is why ice floats on water.

Information Booster:

• Water's anomalous expansion is a unique property, as it expands when cooled from 4°C to 0°C and contracts when heated from 0°C to 4°C.

• At 4°C, water molecules are packed most efficiently, giving it the highest density.

• This property is crucial for life on Earth, as it ensures that bodies of water freeze from the top down, allowing aquatic life to survive in winter.

• Ice is less dense than liquid water, which is why it floats.

• Water’s specific heat capacity is also high, meaning it can absorb a lot of heat without a large change in temperature, which plays a role in regulating Earth's climate.