Quiz · Why Leaves Change Colour

Question 1What does the speaker mainly explain in this talk?

How trees make new leaves in spring Why some trees lose their leaves in summer Why leaves change colour in the autumn How fallen leaves can be used in gardens

Question 2Why are leaves green during the summer months?

They contain a substance called chlorophyll They get extra water from heavy rain The summer air keeps them cool They store red pigment for the winter

Question 3What happens to the leaves after they fall to the ground?

They turn green again in the spring They are eaten by insects at once They are blown away by autumn winds They feed the soil and help new plants grow