If you heat water to 100°C, it boils, If it rains, the ground gets wet, If you mix red and blue, you get purple, If people do not eat, they get hungry, If you put ice in the sun, it melts, If plants do not get water, they die, If you touch fire, it burns, If the temperature drops below zero, water freezes, If children are tired, they sleep, If you press this button, the machine starts

Zero conditional

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