The specific heat capacity is a measure of how much heat energy is required to raise the temperature of a substance. A higher specific heat capacity means that more energy is needed to raise the temperature, which in turn means the substance will heat up more slowly.
In the table you've provided, the specific heat capacities are as follows:
- Brick: 0.9
- Dry soil: 1.26
- Paper: 1.336
- Water: 4.18
Among these substances, water has the highest specific heat capacity (4.18), meaning it requires the most energy and will heat up the slowest when exposed to sunlight for the same amount of time.
Therefore, the correct answer is water.