Why is it important for plants to be able to respond to seasonal changes?

Plants can sense changes in the seasons. Leaves change color and drop each autumn in some climates (Figure below). Leaves changing color is a response to the shortened length of the day in autumn. ... And, in the spring, the winter buds on the trees break open, and the leaves start to grow.

Most accurate means of measuring temperature change would be a digital thermometer. it also minimize the chances of human error.