A-LevelBiologyBiological molecules9700/12 · Oct/Nov 2011 · Q111 Mark
When a lake begins to freeze, which properties of water are needed for fish to survive? 1 Water has a high surface tension. 2 Water has a high latent heat of vaporisation. 3 Water has a high thermal capacity. 4 Water has its maximum density at 4°C. [Table 11]
A1: ✓, 2: ✓, 3: ✓, 4: x
B1: ✓, 2: x, 3: ✓, 4: x
C1: x, 2: ✓, 3: x, 4: ✓
D1: x, 2: x, 3: ✓, 4: ✓
✓ Correct answer
D: 1: x, 2: x, 3: ✓, 4: ✓
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