Deciduous trees lose their leaves each year. T or F

True. Coniferous trees do not however because they are the ones with the "needles"

Deciduous means "falling off at maturity" or "tending to fall off", and it is typically used in order to refer to trees or shrubs that lose their leaves seasonally (most commonly during autumn) and to the shedding of other plant structures such as petals after flowering or fruit when ripe.