Answer: Desert sand is very hot in the day and very cool

Solution

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The specific heat capacity of a substance is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree celsius.

Which means, for the substance with less specific heat capacity; less amount of heat is required to raise the temperature(warm the substance). In other words, such substances heats up faster also cools down faster.

Hence the substance with low specific heat capacity, warms up faster and also cools down faster.